You are most welcome Enjoying Nature - I do love to create content that will enlighten and help those who are in need of more information. I truly appreciate your kind words as they help me to grow as a channel, a channel that will continue to offer help to those who need it. It is comments like yours my friend that give me the excitement and strength to continue on with Outside In - - I thank you for that...

@@Outside-In. Liked your video very much. I have problems in the apartment with the air. I live in Sweden. I want to buy an accurate detector that have many sensors. Do you have other to suggest than what you recommended in the video?

​@@jewsusjewtube1880 I have another monitor on the way from Aliexpress that I will be reviewing, testing and doing a tear-down in a couple weeks. When it comes to a persons well-being/health, I can't recommend anything that I haven't first tried and tested to be legitimit, so other than what I recommend in this video, there are no other monitors I can speak intelligently of.

@@Outside-In. I look forward to the review and it sounds reasonable

@@jewsusjewtube1880 Yes it is one of the lesser expensive monitors and looks great - but looks can be deceiving... After some communication with someone in the comments - I was asked if I could test it. I am hoping this will be an inexpensive alternative for knowing quality of air in the home.

Thank you Tom very much for that sentiment - much appreciated. I enjoy helping others in making decisions that could save a life... - Plus I just love doing research 👍

Thank you Ronald for the comment and gratitude. Hope you get allot of enjoyment out of the M10. It would be great to hear of your experience here once you get and use it so others can benefit from your experience as well.

Great content....really appreciate I buy one and don't think they are actually accurate

@@omargdottin Which one did you buy?.

Thank you Harry for the comment. It is comments like yours that keep me inspired to create more content like this. If you have any suggestions for what you would like to see, please leave a comment, and I will do my best to create a video to address any concerns. ...And - Greetings back to you from Virginia USA.

Thank you for the encouragement - much appreciated👍

Yes. If you only care about Particulates* I recommend the HotKrem for sure. The HotKrem is quite accurate.

Thank you Josh for the comment - much appreciated, and glad I was able to help.

Thanks for the comment, and you are welcome.

Thanks you GTCRISTIAN for the comment and question. I have not been able to use the Amazon AQI monitor, so I can't give an intellectual opinion on that. 👍

Danny thanks for the comment and question. I wouldn't classify lesser expensive monitors as being inaccurate - they are just not pin-point accurate... Pin-Point accuracy is very very expensive. Air Quality monitors that are more reasonable in price is simply because the sensors are not super high quality and why the cost is lower. BUT - these monitors are very close to accurate, and after-all, that is all we need - - close. In our homes we don't need pin-point accuracy, we just need to know that the air is getting a little stale, and alert us to opening a window to get some fresh air moving around. The TemTop monitors are just fine, but once in a while, we get one that has a defect just like the one in this video. And thanks for the subscribe

Thanks FalconWing for the question, and yes I can absolutely recommend the Smart Sensor CO2 handheld meter. It is fast to respond to use around a home of office to find problems spots. I love the Smart Sensor handheld CO2 meter. www.aliexpress.us/item/3256804532459210.html?spm=a2g0o.detail.1000014.46.65c8147bnU1c9S&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.40000.326746.0&scm_id=1007.40000.326746.0&scm-url=1007.40000.326746.0&pvid=efc3c710-34f9-449e-8bd0-1c9c8a114481&_t=gps-id:pcDetailBottomMoreOtherSeller,scm-url:1007.40000.326746.0,pvid:efc3c710-34f9-449e-8bd0-1c9c8a114481,tpp_buckets:668%232846%238114%23748&pdp_ext_f=%7B%22sku_id%22%3A%2212000030221280226%22%2C%22sceneId%22%3A%2230050%22%7D&pdp_npi=3%40dis%21USD%21255.4%21173.67%21%21%21%21%21%402101d1b316774814052091262e2b28%2112000030221280226%21rec%21US%21872586204

Thank you Paul for your question. I cannot recommend anything that I have not tested, but I have tested Hotkrem devices, and the ones I have work great. Hotkrem also makes a model with data logging: www.amazon.com/gp/product/B0B9S6WRZS/ref=ox_sc_saved_title_1?smid=A1SDL45DDNCD9H&psc=1 I have not tested it, but keep in mind also that allot of people say that their Hotkrem did not work or only worked for a few days, I myself have not experienced that, so would have to recommend only with risk of possibly getting one that did not work. I did find another that looks very interesting, but unfortunately cannot afford to purchase for testing, but this is the link if you would like to take a look at it: www.amazon.com/BLATN-Formaldehyde-Detector-Pollution-Particle/dp/B08YRVGCSV/ref=sr_1_3?crid=TT5DX8HRT35Z&dib=eyJ2IjoiMSJ9.JPSUlzIRQbRlHWsJVlvmg_jmjMnJjp2bVM5CsolImXq1oCwS4wCctYppJ1Wtzh9rOC7GgJAeuDM9G9C09HgdAeBAwPIIsdRrSPkttidTxwIGYGPJQUEfA8mDq_wCNs0Zl2R_nF72fj_AQY59OUvR-kW5aENz8hExN4QZ435YSvy0MDsqnfbyrGw1ipBn0zndQxGWLz-vRjOKD2CVQNTdLzNFHiKMUx9Scrkr2FRZB8o.eki4FYmFi2Usc-Nq0XoeSSQWzK6QaGm7SSRBR0h-tbk&dib_tag=se&keywords=air+quality+monitor+data+logger&qid=1710874513&sprefix=air+quality+monitor+with+data%2Caps%2C164&sr=8-3 Thanks for your question, and hope this has helped. 👍

Thank you for the question. Yes it is hard to tell. The Brand is "Smart Sensor", the one I purchased on Amazon turned out to be legitimate - Just look at the photo of the packaging, and it is branded with the Smart Sensor Logo, even though the other photos don't bare the Logo, and I wish they would change those photos, as yes, it can be quite confusing. The following is the link to the one I purchased: www.amazon.com/Cheffort-Handheld-Professional-Grade-0-1000PPM-Industrial/dp/B091DRT5DN/ref=pd_ybh_a_sccl_8/136-3484219-7714427?pd_rd_i=B091DRT5DN&psc=1 You may want to contact the seller, and ask concerning the confusion because most of the photos do not bare the Smart Sensor Logo, and hopefully the seller will update the photos. I suspect that most of these sellers are using stock photos, and unfortunately, the stock photos are of copies, and not the actual meter, - which is unfortunate, as I am sure they are loosing sales because of the incorrect photos...

Thank you Minh for the comment, and you are very welcome. I am glad I could help.

Thank you Mohammad for the comment and question. Yes, you can leave this constantly plugged in for continuous use so if the power goes out, the unit will still run on battery until the power comes back on.

@@Outside-In. Thank you! Keep up the great reviews!

@@monzafreeze I have another Air Quality monitor (from Aliexpress) review coming up by the end of the month. Thanks for the encouragement.

And God bless your family as well. Thanks for the comment - much appreciated.

Well... That is a tough one... Coal plats put off the following... CO (Carbon Monoxide), CO2 (Carbon Dioxide), CH2 (Methane) which can explode at the very slightest spark. H2 (Hydrogen) which is also very explosive. There are gas leak detectors, and the one I own is this detector on Amazon: www.amazon.com/gp/product/B0B82MP3HB/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1 I have not been able to test it or one like it, because I don't have a lot of those types of gases for testing purposes in my possession (other than CO and CO2 of course). The meter mentioned above has high ratings and why I purchased it, but being able to test it without having the specific gases, there is no way to verify if it works. I have another gas leak detector made by Smart Sensor that works great, and super fast to respond to leaks I have tested like propane and butane, but the only thing I don't like about any of these detectors, is the none of them tell you what type of gas is being detected. I found a Smart Sensor gas leak detector that does display the type of gas that is being detected, but it is very expensive and I simply don't have the finances to purchase it.

Thanks Gedion for the comment. It would be interesting to hear your results after doing some tests if you didn't mind. It may be useful for anyone with the same concerns as you had about your cook-top. It is always good to hear of others' experiences.

@@Outside-In. Hi, I was asking chatgpt how to make a c02 sensor, it recommended a high end $55 dollar SCD41 Sensirion sensor connected to an Arduino uno R3, I was hoping for highly accurate pre-calibrated readings, do you think my expectations are too high?

@@TheChromePoet I would have to look into that sensor. It has been my experience that after you spend what it will take to build a monitor, you would save money buying one already made with more readings than one. If you are looking for just a CO2 meter, I highly recommend the Smart Sensor Handheld CO2 meter, as it is a industrial meter built for factory use, so would be what you are looking for as far as accuracy. ...And our expectations are never too high - until we expect that which we cannot do... ;)

This is a link to the CO2 handheld meter I purchased: www.aliexpress.us/item/3256804532459210.html?spm=a2g0o.detail.1000014.46.65c8147bnU1c9S&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.40000.326746.0&scm_id=1007.40000.326746.0&scm-url=1007.40000.326746.0&pvid=efc3c710-34f9-449e-8bd0-1c9c8a114481&_t=gps-id:pcDetailBottomMoreOtherSeller,scm-url:1007.40000.326746.0,pvid:efc3c710-34f9-449e-8bd0-1c9c8a114481,tpp_buckets:668%232846%238114%23748&pdp_ext_f=%7B%22sku_id%22%3A%2212000030221280226%22%2C%22sceneId%22%3A%2230050%22%7D&pdp_npi=3%40dis%21USD%21255.4%21173.67%21%21%21%21%21%402101d1b316774814052091262e2b28%2112000030221280226%21rec%21US%21872586204

Thank you Lisa for your information and experiences. I am sure it is going to help allot of people with these same issues regarding laundry detergents and other products. Thank you so much for putting your thoughts out there for others. I am glad that the video helped in even a small way, but yes you are right, these monitors are not going to be able to detect the chemicals in clothing, but they will keep us aware of particles, Formaldehyde etc., that are in the air around us, but we should never become paranoid - as these things have been in the air since God created all of this wonder and enjoyment, so we need not get so paranoid as that will result in a much larger problem - mental health related sickness, which Can be more harmful than the things we are afraid of... just a thought... ;). Glad for your reference to Revelations - I sat down one day, and read the whole book of Revelations from start to finish, and I must say that it is like the stores I used to read as a child of fantasy and fantastical dreams, but the difference is that This story is real - not fantasy... ...And that is what makes Revelations even more special and beautiful. So many people read a verse here and there - they pick and choose what to read in Revelations, and why Revelations seems so scary and finite, but I am here to tell you that if you read the whole book from start to finish - it brings SO MUCH more meaning and realization to light. Reading the book of Revelations is when I realized Dinosaurs where a real beast that roamed the earth before God destroyed it in the flood, as Revelations speaks of Dragons and such animals.

Hello Bernard, and thanks for the comment and question. If there was a lot of recent construction done to the apartment, there will be high VOC's and HCHO for a while as the paints dry out and off-gas. Unless you have allergies, I would not suspect Particulates to be the culprit. A very good friend just purchased the uhoo air quality monitor on Amazon, and he is very very happy with it. It shows all that you would need to know including CO and CO2, which is something very very important for you to look into because of your symptoms. The uhoo is more expensive at 300.00, but if you want a monitor that gives good information, I am finding that we are going to have to stop buying monitors for less than 200.00. None of my monitors that I have reviewed can I recommend any longer, as they have either quite working or stopped giving accurate information. My Hotkrem works great still, but more and more people are complaining about the Hotkrem not working out of the box, or stops working after only a few days or weeks of use, so I can't even recommend the Hotkrem any longer - bummer because I really like it. The ONLY meters that I have that I can still recommend are the CO and CO2 meters, and they are very very accurate, and no home should be without one. Your VOC's and HCHO is high because of all the recent construction, and no, an Air Purifier is NOT going to get rid of any type of gas (VOC, HCHO, CO, CO2 etc.). The Temtop M10 I cannot recommend any longer because I just found out that they do not include a genuine VOC sensor inside, and they use the HCHO sensor along with a calculation to estimate TVOC, which in my opinion is just plain crazy that a company would do that. TemTop does have a new monitor on the market - the M10+, and they told me that it does have a genuine VOC sensor inside, except that they did away with the HCHO sensor (weird). Check out the uhoo, and see what you think. I contacted to uhoo to ask if they would send me a unit for test and review, but have heard nothing from them, and I assume it is because Outside In simply does not have enough subscribers yet unfortunately, so won't be able to create a video about it because I cannot afford to purchase another monitor at this time. Thanks Bernard for your question and comment - they are much appreciated, and I do hope this has helped at least a little... uhoo Smart Air Quality Monitor: www.amazon.com/uHoo-Indoor-Air-Quality-Sensor/dp/B076PV9X99/ref=sr_1_6?sr=8-6

Thank you Fred for the question. I am trying to find a indoor/outdoor monitor as that would be something I would really like to review, but until I can find a monitor like that, the M10 is a good choice in the interim. Also the AirKnight 9 in 1 also gives great information and more so than the M10, but I reviewed the AirKnight in my latest video - however, there are a few issues I found with it and it may be that I am a bit picky. The issues to some will be minor, but the readings are very good, and it is also portable so you could take it outside from time to time to check for outdoor air quality. I did find and indoor/outdoor monitor but it only does PM2.5 and AQI so don't think it would be good for your wife as it doesn't read HCHO or TVOC.

I am glad it helped, and thank you for the heart - much appreciated.

You are very welcome TrueDamageKieran, and thank you for your comment - much appreciated. 👍

Thanks Justice for your comment and thoughts. I do allot of 3D printing with PLA, so may be why my numbers are a bit higher when printing. I have never used ABS, but I hear that it puts off even more fumes/odors than PLA, so a great reason for having a VOC sensor around for sure... Good to know when to get that window open for some ventilation. Yes, unfortunately, Amazon let's the fake ones through, but I am sure it would be hard to keep up with the many monitors to know which are good, and which are bad, so a good point that when there are enough complaints, it is a good time for Amazon to look at the specific device closer, and remove it from the sales window... All good points Justice - much appreciated 👍

Thanks, Toto, for the comment. If you are having a problem with sleeping that is not caused by your condition, what you would want to check for would be CO and CO2, and my recommendation first of all would be the Smart Sensor handheld CO meter. If there is a problem with carbon monoxide, you will know pretty quickly. As far as. CO2, I recommend Smart Sensor CO2 handheld meter. The AiKnight with CO2 detection would also be a great choice, but would also need to get the Smart Sensor CO handheld meter for checking carbon monoxide, but those two together would be all you would need for air quality testing. I hope this information has been helpful. I would have gone more in depth, but I am at the garage right now getting my truck worked on, and writing on my phone is not the easiest thing to do, LOL..

@@Outside-In. Thanks for the information my fibro comes with sleep issues but I wanted to check if it was just that or if there is any air quality issues in my home that could be making it worse. Sleep is very important and rem sleep is the most important and I don't seem to get enough of that some nights I'm waking up 10 or more times. It would be nice to find out if there is anything like air quality causing issues then maybe if there is I can do something about it

​@@TotoGuy-Original Thanks Toto. I am starting to wonder if there is another issue related to not sleeping well, such as - stress will cause one not to be able to sleep very well, eating just before lying down will also be a factor in a bad nights sleep (waking up throughout the night), anxiety (not feeling happy, worry etc..) is a big reason why someone is up and down all night. I don't think that PM or TVOC's would cause a person to be up all throughout the night, as there would be some symptoms after waking up like coughing or sneezing, itchy eyes etc.. If CO or CO2 was an issue, there would be symptoms such as headaches, dizziness, euphoria, a sick feeling in the stomach (nausea), and as the symptoms progress, there would be convulsions, and walking around like someone intoxicated, - I know - that is what happened to me, so why I am so familiar with CO and CO2 poisoning. Drinking allot of coffee (like I do) will cause you to get up many times throughout the night, but I guess that makes sense anyhow right??? LOL. Just trying to think of anything that could cause having to get up many times at night. I don't know anything about your fibro condition, so can't speak intelligently on the subject. wish I could be more help, but I feel your problem doesn't stem from air quality, I feel it is either the fibro or something personal in your life that is causing undue stress and or anxiety.

Thank you for the comment and subscribe - much appreciated.

Thank you Deem for the comment and feedback - much appreciated.

You are very welcome Zaki, and thank you for the comment - much appreciated 👍

The fake monitor has no fan, I only said that before taking it apart because the small pinholes made it appear that a fan was in that spot. Odors will cause monitors with TVOC sensors to go nuts, and cooking puts off allot of odors as well as particulates from smoke, so why allot of monitors appear to not register correctly especially while cooking food. You are right, monitors with fans work better because of a constant air-flow. The six in one that you speak of, is it the fake monitor in the video?. I tested this monitor again the other day, and blowing alcohol into the device made ALL the numbers go nuts. I do believe the monitor is using math for it's readings and why it sometime appears to be working, which is why monitors like this confuse people, and make it hard to believe it is fake. I may have to visit this monitor once again, but am not sure how I am going to convince some that this monitor truly is fake and not to be trusted. If you have this monitor, and would like for me to do another video, what kind of test could I do that would convince you that this monitor is not to be trusted?. I did another video about this monitor, so not sure if you saw that one. This is the link to the other video, if you still have questions about it's legitimacy, I would be happy to do another video with a test of your choosing. Let me know The "other" video: kzfaq.info/get/bejne/gamgfMSFqJvQkac.htmlsi=TIxZmrtGzqFLv2Sc

Glad you liked iit 👍

So happy these videos have helped. Getting ready to do another comparison with the AirKnight 9 in 1 and a Smart Sensor 5 in 1, it should be interesting. I love the Smart Sensor co meter, and the Hotkrem is a good choice as well. I do hope those work great for you.

Just to clarify it's the 5 in 1 Hotkrem that includes the CO2 monitor. I will definitely look at your AirKnight review as well. The Hotkrem PM readings have brought a lot of peace of mind during these Canadian wildfire events.

@@juicebowl I found out that Hotkrem has several versions and one includes a CO2 sensor, so that would be a great choice. I just wish that Hotkrem would stop with the numbers changing colors as it is very hard to read the screen when the numbers go dark red, as the dark red blends into the black background causing the numbers very hard to read. Thanks for your comment - it is much appreciated.

Thanks for the comment and question. I have not had a chance to try anything by Amazon yet, so I can't speak inelegantly on those. I have a number of projects going on right now, but hopefully soon I will be able to make a purchase of one of the Amazon monitors for testing and review...

Thank you for the question. What temperature has to do with Mold: Most molds cannot grow below 40° F. This is why food is typically refrigerated at 39° F. Mold grows best between 77° F and 86° F, - Especially if the air is humid. What water has to do with Mold: Molds thrive in damp, humid, and wet conditions. There are no detectors for mold currently on the market, but you can purchase a mold test kit on Amazon, that you can use to test your home in different areas, following all instructions, and send the test kit back to the manufacturer, and they will analyze the results and let you know if your home is at risk of mold contamination, and also steps you could take to keep future contamination from occurring. You may also consider a dedicated Temperature and Humidity monitor, so you can keep an eye on levels, and if the humidity is high and stays high, that can be a danger for spores to multiply and turn into mold. If you have high humidity on a consistent basis, you may consider a de-humidifier to keep your humidity in check. As far as allergies, a PM monitor would be good to have, as high particulates in the air along with high humidity can aggravate allergies. It would also be safe to say that pollen in the air will cause a PM monitor to go high in readings, but as for a specific monitor to detect pollen, I have not heard of one, so not sure if such a device exists. Allergies are a hard one to tie down as there are many things that can induce an allergic reaction or cause existing allergies to flare up, but these are ONLY my opinions of course. Just keep an eye on humidity, and particulate levels and your body's reaction to them, and for the extent of my knowledge, that would be the best way to go. If you decide to use a mold test kit, please let us know here your results, and how it goes - it would be nice to know. I only hope that I have been able to help, and thank you for your questions and comments, as the answers may help others as well in their search for peace of mind.

For PM 2.5, I recommend the Hotkrem The Hotkrem registers... PM 0.3 PM 0.5 PM 1 PM 2.5 PM 5 PM 10 Hotkrem also has an inexpensive CO2 monitor, so check them out. Thanks for the comment - much appreciated.

The Hotkrm CO2 monitor is very accurate, and inexpensive. I recently did a video review of it.

@@Outside-In. Thanks a lot! Unfortunately the item is currently out of stock but I think I would look onto their other models.

@kevs8829 You just have to be careful about their other models, as it is a hit and miss on one that works unfortunately. The TemTop C10 is a great CO2 monitor, and it is around 80.00 I think, but would be a good choice. CO2 monitors are very expensive, but other than Hotkrem, I would recommend the TemTop for budget reasons. Hope this helps.

I'll take your word for it! I think it's definitely worth the price.

@@kevs8829 Yes, I really do like the TemTop CO2 monitor, and I do believe it is worth the money for sure 👍

Thank you Thomas for your comment and question. I have thought of that very thing, but after looking into it, the cost of such a project is something that I am unable to do at the moment. I have been working with AirKnight in developing their new model, but I guess that is as close as I can come to actually creating one myself. 👍 AirKnight's new model is supposed to be out by the end of this year, but haven't heard from them in a while, so no updates on how close they are in completion.

Thank you gelisob for your comment, it is much appreciated. I wish I had known this information before I sent them both back. That is good information, but both monitors read the same and the second meter as a replacement was worse than the first with more wrong with it, and also TemTop would not help me with the issue - so still can't recommend TemTop Customer service however... Still - this is good information for anyone that has this meter and wishes to try this fix. Thanks so much for your invaluable detailed info.

You are very welcome and am happy that it helped. Have a Happy New Year

@@Outside-In. Happy New Year 🎉 to you, too.

@@T1k3mys0n 👍

That is normal behavior for the fake monitor. WD40 will get picked up because of the odor. Breathing heavily into it and triggering CO2 reading, could be because of an alcoholic beverage or mouth wash, or even if you had just finished brushing your teeth. The Chinese are very clever at making these appear to be legitimate.

@@Outside-In. I didn't consume anything for hours before each test but still pinged the monitor. Still interested in how the PM2.5/PM10 value spikes and alarms when emptying the vacuum cleaner if there is only a VOC sensor. The same with banging on a dusty carpet like in another KZfaq video. I've sent mine off for a refund and will get a Hotkrem or Temtop, but I have a feeling that the sensor isn't as bad as it seems, albeit the values it throws out are a bit inconsistent, the alarms is raises are genuine for most values.

@scout9012 Thanks for the clarification. Even dirt has an odor, and why they can make these look legitimate. However, any monitor that gives even one piece of false data is fake, and not to be trusted period... I cannot emphasize this enough. I would ask everyone to please not put trust into a device that gives even one piece of false data. A fake device is not ok even it it gives at least 1 good reading, and this fake monitor - gives zero good readings and that is a promise....

@@Outside-In. Sorry but that explanation "WD40 will get picked up because of the odor" is just pure bullshit. As is "CO2 reading, could be because of an alcoholic beverage or mouth wash". The sensor on the cheap air quality meter is doing what it should, it's just less accurate, obviously.

I also plan on using "eco resin" which supposedly creates less VOCs while printing.

I have heard the same thing, but have not built an enclosure to test that, but it does make sense that it would be good to do. You would want to keep an eye of VOC's, so the AirKnight would be good for that. I found out that the TemTop M10 does not have a VOC sensor, so I would not be able to recommend it any longer, but TemTop is developing a new monitor - the M10+ which does have a dedicated VOC sensor. TemTop told me it should be available in April, so that will be a good monitor to test. TemTop is supposed to be sending me one for a video review and test, but I guess I will just have to wait and see....

Yes Stephan, leave it outside in fresh air for 6 hours for calibration. I think what it is for is to clear the device of any fumes accumulated during manufacturing. Once you have opened the package for the first time - step 1 is to leave it powered off, place it outside in fresh air for 6 hours. Step 2 is to turn it on (while still outside) and leave it for about 30 minutes before bringing it inside. You should only have to do the 6 hour thing once after purchasing or storing it for any length of time. Hope this helps Stephan. Before performing the above procedure, make sure it is fully charged before you start. Myself, I connected it to a power bank and set it outside so that the initial charge acted as part of the 6 hour calibration/clearing of unit.

Thanks for the comment, and you are welcome.

Only if it is not raining

Thank you Josh for the comment. I have taken apart TemTop monitors before, so I know that they do use legitimate HCHO sensors in their devices, so why I didn't take this one apart, but I guess maybe I should??. :). Normal depends on the amount of Formaldehyde in your environment. I would say that mostly there should not be too much Formaldehyde, unless of course a person has actual Formaldehyde in use. Formaldehyde is in everything that we use, so there will always be a minimal amount in our environment, and more if we buy a piece of furniture from WalMart etc., and as we put it together, that will cause the levels to rise (and that is just one example of possible HCHO sources).

Yes, the M10 does a pretty good job, but all we need is a close approximation of our levels, so "I find it accurate enough for me." is a good way to put it... Drilling holes in walls would (I am sure) cause the HCHO levels to go up, but as long as you have good ventilation, the reading should come back down fairly quickly. High humidity will also cause HCHO levels to go up as well.

In a couple weeks I am creating another Air Quality comparison and tear-down video of the Smart Sensor 5 in 1, and the AirKnight 9 in 1 air quality monitors. If you are looking for something for commercial use - I am not sure the monitors I review would cover that, as monitors for highly accurate and pin-point data are very very expensive and not in my budget to purchase by any means. I review these monitors for people that need an inexpensive solution - that gives very very good readings, but not scientific lab results.

@@Outside-In. Thank you for the quick response! When I read the prescriptions for LEED for co2 sensor it is needed to be nadir and compliant with EPA standards. As I am reviewing the Temtop M2000 from the original site it says that covers these requirements. The problem is that there isnt available instrument with co2 plus tvoc sensors combined. If i have to purchase 2 instrument from Temtop will go over my budget. Are you familiar with the instruments you tear down if they have such sensors like co2 nadir Sensair and for the tvoc just to have any type of sensor in it?

@@silviahristiyandraganovi3289 I can not and would not recommend the M2000 because I received two in a row that were defective (the second one more defective than the first), and the company would not help except to encourage me to spend more money on a more expensive model. If however, you intend on buying TemTop handheld, I would go with the M2000 2nd edition - as it has very good reviews and it is an upgrade to the M2000 (which TemTop told me it resolved issues with the M2000). The M2000 2nd edition also has the ability to record a history of data and connected to a pc for analysis. I hope this helps. ...Also the Hotkrem in this video I can recommend for TVOC. Finding a handheld or monitor that does Co2 AND TVOC is proving to be a problem, as I just realized that the M2000 2nd edition also does not show TVOC - just Particle Matter only (which is were most of your TVOC comes from), but I guess the other parts of TVOC is important as well, and the reason for the need for TVOC - not just PM...

Silvia, I thought I would reply again with additional information on your question. I wrote the AirKnight 9 in 1 company asking them specifically about their monitor's co2 sensor and this was their response: "Thank you for contacting us and yes, we use the NDIR sensor for the CO2 monitoring of the AirKnight AK1000.". In a couple weeks, I will be doing a comparison, review and tear-down of the AirKnight monitor, and until then I can only go by what the company tells me, so I won't be able to recommend the monitor until I have done the review. I hope this gives you the possibility that I may have found a monitor that you can use for your purposes, and look forward to confirming AirKnights claim.

Thank you for the comment and question. I can't find the sm300d2 so not sure what you are talking about. Maybe a link to what you are talking about would be helpful. I have seen a couple DIY air quality monitors, and they look fine. I can't speak on how accurate they are as I have not had the opportunity to build one to try out. The Hokrem in this video is a DIY air quality monitor that is pre-assembled - and it works just fine.

@@Outside-In. yes, this is a board with a screen without a case for home-made assembly. I now choose on aliexpress, unfortunately there are no reviews there, and there are no video reviews either. Given your professionalism and experience, I decided to consult with you. And what is better to take, what will work more accurately. Board for DIY or ready-made device. I have a limited budget, so I'm very afraid of making a mistake.

@@kolyakolya922 could you provide a link to this diy monitor on Aliexpress?, I would like to see the listing. Thank you. I went on Aliexpress and found this module sm300d2. After looking at this, I would not take a chance that this actually has the seven senors, because I only see one sensor (PM Particle sensor). I don't even see a temp & humidity sensor on this board. I do see what looks like a breathalyzer sensor which has nothing to do with the claimed sensors on this board. I would not take a chance on this for more than $60.00. If you would like a good monitor, I would look at the TemTop M10.

@@Outside-In. I will be very grateful if you can tell me if it is worth buying. Since it's quite pricey for me, I don't want to make a mistake. What can you say about its measurement accuracy. And the main question that the seller of aliexpress does not answer me. Does it need to be calibrated, or can you just turn it on and it will already measure accurately?

@@kolyakolya922 I went on Aliexpress and found this module sm300d2. After looking at this, I would not take a chance that this actually has the seven senors it says it has, because I only see two sensors a PM Particle sensor, and possibly a breathalyzer sensor. I don't even see a temp & humidity sensor on this board. I do see what looks like a breathalyzer sensor which has nothing to do with the claimed sensors on this board. I would not take a chance on this for more than $60.00. If you would like a good monitor, I would look at the TemTop M10. I would love to be able to purchase the sm300d2 board for testing, but unfortunately I don't have the money to do that right now.

If you are talking about the FAKE monitor as in when you said "the Aliexpress box when it came to particulate measurements". This video was about exposing the DANGER of owning it (because of no CO or CO2 sensors), and how the particulate measurements were not agreeing with the others, and how sometimes they went nowhere when they should have - I even took it apart to show that there is either no sensor at all, or a garbage particulate sensor inside. I pointed out the Carbon Monoxide AND Carbon Dioxide with such gusto, because Carbon Monoxide and Carbon Dioxide is THE 2 MOST IMPORTANT measurements on any monitor that incorporates them... It is beyond me why people continue to try and make excuses for this fake monitor... I do apologize for sounding aggravated, but ANY MONITOR that has just ONE reading that is a lie (in this case CO and CO2), then the whole thing is a lie and nothing but a lie, and cannot be trusted for any of it's information. Would you trust someone who lies to you only on occasion?, I would hope not, as you wouldn't be able to trust anything that they say, and the same goes for any monitor that attempts to deceive, even with one (or in this case 2) of its readings... When people come to Outside In, they can be sure to get the truth and nothing but the truth. I am not going to go easy on a product that doesn't do what it states - especially when it is lying. I am also not going to recommend a product that could get someone killed - just to make money. If I have to start shading the real truth about a product - in order to make money and survive, then I will just have to starve to death, because anyone's life is more important to me than making a buck. Thanks Paul for your comment and thoughts - much appreciated - and again - sorry for sounding a bit frustrated, but I am not going to sacrifice anyone's life or my integrity - for money - EVER, and if that means that Outside In will never grow beyond where I am now - then so be-it. As long as I can save someones life - maybe yours, then that is EXACTLY what I sat out to do in the beginning - I truly hope you can understand and appreciate that. 👍

Thank you Guntara for the information. I did look up that number, and it looks exactly like the box in the device, so I have to assume that in fact it is a PM 2.5 sensor. Makes me now want to check this with the device again. But here is the thing... Even though this small box may be a legitimate PM 2.5 sensor, does not mean that this device is not a fake, as it does not have a co2 or co sensor, so for that reason alone - it is still a fake, and NOT to be TRUSTED by anyone. Any device that has even one fake reading, is a complete fake and not to be trusted.

Ok, I don't have any orange zest to try, but I did try breathing into the meter with Kingbond Wood Glue, CLR grease cleaner, Windex, Goo Gone, Simple Green Concentrated cleaner, and the levels didn't go above 0.12, but when I breathed Venigar into the meter, it jumped to 0.18 - so Vinegar had the biggest effect on HCHO (Formaldehyde). I also did some research and found (among other things) the following - based on questions posed that would cause high levels of HCHO: Sources of formaldehyde in the home include building materials, smoking, household products, and the use of un-vented, fuel-burning appliances, like gas stoves or kerosene space heaters. Formaldehyde, by itself or in combination with other chemicals, serves a number of purposes in manufactured products. I also tested HCHO with a cigarette, and it rose to about 0.69. Mostly - HCHO (Formaldehyde) monitors are primarily used to detect smoking or smoke from burning building materials or Forest fires. I hope this helps you out with some information, and am glad I could offer assistance to you sir.

@@Outside-In. Thanks for the clarification, I could swear I wrote a reply before but *poof youtube magic* I guess? Anyways just ordered the monoxide sensor you endorsed and an M10 from ebay. Will post the results, I think if I close the room with lots of particle boards during midday it should pretty much show if any HCHO is being emitted.

@marakll yes, particle boards should do the trick very nicely, LOL. You are going to love Smart Sensor meters. There are a couple more I would really like to get, but 500.00 is way more than I have, so I guess I will have to wait. And yes, I myself have left replies that did not get posted as well, so don't feel bad. Thanks for getting back with some pretty cool information. And yes, also, let us know how it goes with the meters for sure.

@@Outside-In. Hello again good sir, the sensors are finally here and here are the early results: CO basically 0 everywhere, except right above the gas stove on very low flickery fire, it jumped 35+ there and started beeping. HCHO: 0.01-0.02 anywhere except the room with leftover particle boards, 0.06 there. TVOC: 0.02-0.04 anywhere except that room, almost 0.3 there. PM2.5: 5 to 7 around. I'm going to leave the kitchen door and windows fully closed overnight and test levels tomorrow when it's heated by the sun. Guess at least I didn't get dummies and prolly my nose did just as good of a job. Taking the sensors to the office tomorrow for... scientific purposes.

@marakll Thanks Marakll for the update. Sounds like your levels are pretty good. However, you may want to be careful how low you have the flame, as the flame being too low will create CO and even CO2. If the co should jump to 35 or more around 3 feet away from the stove, you may want to check things out. To anyone using a stove with a wick, make sure you keep the wick trimmed to get the cleanest burn. If a wick gets charred, that is when it will start putting off co or even co2. It would be good to hear how it goes at the office with your scientific tests. I have another air quality video coming up by the end of the week, so if you could tell me the scientific tests you are doing, maybe I could use the technique for my up coming video...

I don't see anything by that name. Maybe you could add a link to the monitor your talking about. Thanks for the comment and question.

@@Outside-In. I sent them to you by email since KZfaq does not allow me to post links.

@@LouiseAnthes Thanks for the reply, I will check it out and let you know.

@Louise Anthes I went to the website and read with great interest about this product. I sense that these are mainly for knowing air quality in your area outdoors. It says it can be used indoors, but they say nothing about using them indoors, only showing photos of them mounted on the outside of buildings. Hmmm... sounds reasonable for as low as 200.00, but like I have mentioned to others who ask about specific monitors, I would not feel comfortable recommending anything that I personally have not physically have touched, did a teardown and tested. If I could afford to purchase one of these units, I would love to do a review and teardown. I have another video coming up in a couple weeks of another monitor review and teardown that is going to be quite interesting for sure, but it has drained me financially to get all the items that I will be using in the review, so no finance left to be able to test this device. ...BUT I will be adding it to my list of possible future videos. I would love to dedicate Outside In to testing different air quality meters, but it can get quite expensive purchasing so many monitors. I spend my own money to purchase everything for my videos to help people to make informed decisions, so the little that I make from my job, just isn't enough it seems to do a much as I would like LOL... I will keep this information however so that when I can save enough to review this - I will. There are so many companies that claim to have the latest and greatest, but I am finding too often fake monitors and why I would not be comfortable recommending anything I haven't personally used. I hope this helps. I am sorry I can't give a recommendation about this monitor - YET anyhow, but maybe some day I can and I look forward to that day.

@@Outside-In. No need to apologize. You are doing a superb job comparing all these fake monitors and stuff on your personal money. Thank you for your long answer and good continuation! You have gained a subscriber ;)

Thank you Mary Ann for the comment and input. Yes I agree - there should definitely be testing done to prove there are these fake meters out there - especially when people are counting on them for safety... I am glad this video helped in your search for an AQ meter - and if you should get the M10, it would be nice to hear how it works for you. I am always on the lookout for a cool meter, so maybe I should look into a radon detector\meter and see what that is all about.

@@Outside-In. I did wind up purchasing the M10 Temtop. After airing it out overnight, I brought it in and was happy to see each room of the house everything was in range (except the formaldehyde....it doesn't "zero out" but only zero is good...I will have to try it outside). I wasn't sure if the readings were accurate since they were all low, and then I decided to make dinner using the air fryer. Well, the readings went very high (PM, TVOC and AQ)....all through the first floor of the house. Well, that was pretty educational! Our kitchen has poor ventilation so I will pay more attention to that while cooking. I would say this meter is going to be helpful.

I just wanted to amend my comment to say that I'm not sure how low the formaldehyde levels need to be to be safe, whether that's zero or ....? It was the one reading that didn't change with cooking.

@@maryann6365 Thank you Mary. Wow - again KZfaq didn't notify me of a comment. Sorry I didn't respond to this incredible information, but it is truly appreciated to hear others' experiences with the M10.

​@@maryann6365 Formaldehyde is (I believe) mostly associated with smoking. Overall, there is a growing consensus that indoor air concentrations in the range of 0.08-0.1 ppm (100-120 μg/m3) represent safe exposure level for most people. So yes, if your levels are 0 or about there, I would say that you are in good shape Mary... Thanks again for the information and again sorry I didn't know your comment was made....

Thank you for the comment and glad it helped 👍

And would you happen to know about airthings products

Unfortunately, the TemTop M10 uses the HCHO reading to get aTVOC reading (through a calculation), so I wouldn't trust the TVOC at all on the M10. TemTop verified (after sending them an email) that the M10 does not have a VOC sensor and uses the HCHO sensor instead. Weird for sure. Sorry that I did not know that when I did the video., as I told TemTop that I would not have recommended the M10 of I had known that, and why now I will not be recommending the M10 any longer. TemTop told me that the M10+ does have a VOC sensor but does not have an HCHO sensor any longer, which again is weird and nuts that they would do that.

@rowelquero No, I do not have an airthings monitor, so I don't know if they are any good.

What do you recommend to detect tvoc?

@@rowelquero TemTop was supposed to send me their M10+ for review, but decided not too. Other companies that I have contacted to test and review their monitors, stop communication with me as soon as they check out he channel, so not sure quite what to think of that... I always tell companies that I am completely un-biased and honest, and that is when I don't ever hear from them again, accept from AirKnight. AirKnight is getting closer to their new monitor, so hopefully that will be out soon. Jim will let me know when it is ready. Other than that, I simply can't recommend anything that I have not tested, and I just can't afford to purchase any more monitors for now. Thanks for your interest. I would like to do more but the cost is way too high, and Outside In is just too small for companies to take serious - not enough subscribers yet, but I am sure we will get there some day - just not today...

You are very welcome Eric Davies - thank you for the feedback.

Thank you so much Justin for the comment and thumbs up - much appreciated. I am so happy to hear that you didn't get stuck with the "fake" monitor... The Airknight you speak of is one that I looked at before, and now that you mentioned it, causing me to go see it again. I believe that I am going to make the purchase because I actually have another monitor on the way made by my favorite company "Smart Sensor" - I love Smart Sensor products. I thought that maybe I could purchase the Airknight monitor and do another video comparison. This should be another fun video to do. If there is anything specific you would like for me to do in the test comparison - please let me know and I will try an implement that into the video. I am very much liking the Airknight, and am so glad that you brought it to my attention as I had nearly forgotten about that one. The Smart Sensor 5 in 1 monitor should be here in a couple weeks, and I will try and get the Airknight so I will have it to use in the video. Thanks again Justin for your question and suggestion for sure. Am excited to get to do another air quality video for sure my friend.

@@Outside-In. Thanks! I'll be looking forward to a video on the Airknight 9 in 1. I've occasionally experienced some minor breathing issues so I'm just trying to determine if it's an issue with air quality in the home as I live next to an airport and a highway. I also got a higher MERV furnace filter and I want to see if I can quantify the difference in any way. I'm still pretty new to the idea of monitoring air quality, so I'll look forward to your input on the device. Thanks again

@@Lightja_ Always happy to help in any way I can. I enjoy doing these tear-down and comparison videos, so this should be exciting. If you live near an Airport and highway and are starting to have breathing issues - it may be that you have an elevated co2 in your home, so yes a co2 monitor would be good. Also a co monitor would be a good thing also since there are all those fumes of different kind roaming around... Using cleaning supplies that have concentrations of Ammonia will also be a super huge reason for breathing related problems, and allot of people don't realize that ammonia is very very dangerous even in small doses. I am looking into getting an Ammonia meter, but I have to get devices one at a time when I can afford them. So you may also want to look into your cleaning supplies for products that contain ammonia - and also how often you use them. For high strength cleaners that use ammonia, you may consider getting a respirator to wear while cleaning.

Yes, you are right gelisob, I did fail to look closer, but if you see my updated video, I purchased a second monitor for the video (because I had already thrown the other one away), and found that even though there looked to be another sensor (laser) in the unit, it still gave horrible readings and not at all to be trusted. A company that creates a monitor that gives gives readings from a genuine sensor, and creates 6 other readings from sensors that don't even exist - is (In my opinion - A FAIL) and a lie to the end user. A meter that gives blatant false information should not be allowed on the market, and should never be trusted by anyone who values their life. Thanks however for pointing that discrepancy out - much appreciated... 👍

Thank you Neil for the kind words it is much appreciated. I love to laugh - as it cures many ailments... Thank you also for the comment on the review and am glad you liked it.

@@Outside-In. my pleasure :)

@@neilaleksandrov2655 :)

Hello Pkd, and thanks for the comment and question. I am sorry to get back to you so late, but I have been working on a new air quality video that was supposed to include a monitor from AirKnight and also Smart Sensor (which happens to have the pm 2.5 that you asked about).. Unfortunately, Smart Sensor sent me the wrong monitor that I had purchased for this video, so can't include it in my video. But - Yes, Smart Sensor does have a 5 in 1 monitor that gives HCHO (Formaldehyde, TVOC, PM 2.5, Temperature & Humidity). It is the AR830A, but they sent me the AR830 by mistake. I have contacted them, but have not had a response from them as of yet. I ran into a few issues with the AirKnight 9 in 1 monitor and am unable to complete the video as a result of these issues. Am in contact with AirKnight to hopefully get these issues (serious) corrected so that I can complete my video. I don't think that I will be able to get the Smart Sensor monitor in time for this video however, because of the length of time it will take to wait for the shipment. I do love Smart Sensor Products and love to use them in my videos, but until I can get the monitor in-hand for testing, I would not be able to recommend it as it would be unfair to you. I am sure the AR830A is a great monitor, but until I have it in hand, I can't recommend so hopefully you understand that. If you need a CO meter, the Smart Sensor hand-held CO meter is incredible to have and very fast to react to an environments quality. I hope this has helped, and am looking forward to creating the AirKnight 9 in 1 video as soon as I can. I already created the AirKnight video (spent about 12 to 13 hours), but I ran into major issues regarding the monitor and decided to scrap the video until AirKnight gets back with me about having those issues corrected...

@@Outside-In. Hi Steven many thanks for your response ,i will wait for your next comparison video of mentioned air quality monitor .

@@pkd2411 Now that I am thinking of it, I might just go ahead and use the "wrong" monitor Smart Sensor sent, because it does show PM2.5 that you asked about, but it only shows PM 2.5 and temp and humidity, but if that is all you are interested in, then just maybe the AR830 would be a good choice for you, and yes, I do believe now that I will use the AR830 in my new video - so thanks for the question...

@@Outside-In. Hi Steven ,Thanks for your response ,i will check AR830 i was also looking for a separate thermometer hygrometer to control humidity in my room while running air conditioner and to check it's performance but i believe if smart sensor monitor measure all of these required things i will not require a seperate thermometer hygrometer but Still just for my knowledge if you know any thermometer hygrometer that's uses highly precise sensors made by Bosch ,sensirion etc let me know it .Thanks again.

@@pkd2411 Wow - these questions are coincidence???... I say that because in my video coming up, I will be using another meter from Smart Sensor - it is the AS847 (Humidity and Temperature hand-held meter). This meter is for using in factories and hospitals etc., for testing the humidity, and even in plant rooms, greenhouses, so would be exactly what you would be looking for, so I think you are going to really like this upcoming video for those two reasons (2 smart sensor meters)... Thanks again Pkd for your comments and questions, and I hope that I can answer each of them with this upcoming air quality video.

Thank you so much, as that is why I truly believe that God led me to create Outside In. Your sentiments are very much welcomed and appreciated, as it is comments like yours that give me not only encouragement, but inspiration as well to continue to do what I believe God has led me to do.

Happy to be of help.

I was thinking about buying one to measure and find out if it's the air, but I would only have money for one, so I don't know which one to choose

The first thing I would guess being that near an airport - definitely invest in a CO (Carbon Monoxide) detector, as that sounds like that is what you Aunt is experiencing. There may also be co2 mixed in with that as well because spent fuel can also cause co2 off-gassing, but because you can smell a significant odor - it is more likely Carbon Monoxide as Carbon Dioxide has no odor or smell - so you don't know that it is present in your environment.

​@@ck.campos The Smart Sensor CO handheld detector I show in this video is extremely useful for detecting co very quickly and is very reasonable in price - here is a link to the one I use in this video: www.amazon.com/dp/B091DRT5DN?psc=1&ref=ppx_yo2ov_dt_b_product_details

@@Outside-In. thank you so much for being so kind and so quick in your answer!! all the best to you!!

I am also uploading a new video in the next couple days showing a co2 monitor that is 66.00 which is also another monitor that people should have. I believe the two most important monitors to have would be a co monitor and co2 monitor as those are the most deadly gases that can exist in a home and of those two - co2 being the most deadly simply because you don't know it is even present due to the lack of odor or smell. A link to the co2 monitor I am getting ready to review: www.amazon.com/dp/B0BBG9DZHB?psc=1&ref=ppx_yo2ov_dt_b_product_details I hope these responses have helped.

It is great to hear comments like yours. Thanks for your input - much appreciated. 👍

Some air purifiers use ozone to eliminate VOC's, so I would say that that eliminates ozone as being a VOC itself, but is that true????. The ridiculous thing is that there is no one who will say yes or no to that question - is ozone a voc?... Every time the question is asked - the answer is a multitude of dances around the subject, and I think that is because no one wants to take the risk of being wrong LOL.. When I read some articles on the subject, I think, ok, then ozone must be a voc, and then I read another article, and say, ok, then ozone is not a voc, but there is absolutely no one that will say definitively whether or not ozone is a voc - yes or no, so your guess is as good as mine. I will do a test with my ozone generator to see if that makes the VOC go up, and maybe that will say that ozone is a voc, but then there will still be others that would argue it is not, so there ya go, pulling out the rest of your hair LOL... From my understanding of ozone after much research, ozone is a result of the reactions of many different VOC's, so that would tell me that ozone is in fact a VOC, but then I read another article that states that ozone is a by-product of VOC's, so I would still think that ozone gas is a VOC, so do you see the confusion?. I guess we could take humans as an example... Two humans get together and after many different reactions - end up with a child, - Is that child a human? - yes, so maybe that is the answer... Ozone is a VOC because it is a result of many different reactions from VOC's, so therefore is has to be a VOC itself... hmmmmm 🤪

On a side note however... Ozone is some very very nasty stuff, so be very careful messing around with it. Ozone generators are a great way of eliminating VOC's (especially odors), but the result of using ozone is very dangerous. After you run an ozone generator, make sure you allow your home to ventilate for at least 12 hours before returning into the home, and then run fans like you are doing for an additional 24 hours to make sure that all the ozone is gone. The human body reaction to ozone is allot like the reaction you would get from using Ammonia, - it is very very uncomfortable, and will cause you to feel like you are being suffocated. Ozone can and will kill you, and it would not be a very easy way to go, and as a matter of fact, it would be an excruciatingly painful way to die.

@@Outside-In. thank you so much for your time & patience for replying! If I can go back in time I would def not have used the ozone generator for cat odor and black mold/mildew smell. Apparently I bought an ozone on Amazon that gave off 40000 mg/h & that is way too much! The "safer" ones give off 1000 - 3000 mg/h you can run it for like 4 - 8 hours & be ok...depending on your square footage! My mother's home is only 1300 - 1600 square footage! I was told by a ozone generator company that I did a little too much & get this...I only did it for 30 min! I was told that for 40000 mg/h, I would've been fine running it for 5 min! Thank God I didn't listen to people who said run it for 3 - 4 hours!!! Anyways If you can test the m10 or even all those air quality monitors for ozone that would be a life saver for me! I'm going in the house for just 3 - 5 min & getting dizzy & headaches very quickly...not good! I have some hope with the ventilation process but to speed it up...I heard air purifiers with activated carbon/charcoal filters in them work great with eliminating 60 - 70% of O3 molecules & VOCs...it's called the shark filter for 1400 square feet...I'll highly appreciate it if you can make a video or at least respond to this comment with your results on ozone detection. I heard there're ozone meters, but they are so expensive! I am going to Lowe's now to pick up the air purifier. Thank you!!!!

​@@ElliotCS1.6 I was thinking about using my generator in my new case for a video, but my generator is a DIY generator I built, and it is much too powerful for use in a case, as also an ozone generator will have an adverse reaction to plastics in your car or home (or in my case), and why allot of people don't use them, as they will also break down any rubber seals in devices that may be in your home or car (ozone is very toxic stuff for sure). If your ozone generator is powerful, it will only take a couple of minutes for you to start feeling the effects of the ozone it is putting off. When I use my generator, I have a timer on mine that I set to turn on at a specific time, and run for up to 4 hours, and then it shuts down, and then I stay away for an additional 12 hours before returning home. If I am going to use it, I set it for a specific run-time, and then I immediately leave my house. I usually do this when I am going to be gone for a day or at least 20 hours, so that when I return home, the ozone is gone, but still I turn on a fan for a while anyhow just to be sure that all ozone is gone and not going to effect me. The 3000-4000 is still not at all a very good thing to do while you are in the environment while it is running. One of the biggest symptoms of being in ozone too long, is your throat will start to feel scratchy and irritated, and you will also either start coughing or feel as though you want to cough, and that is one of the best ways to know that you have been around ozone too long. The longer you stay in that environment, the more you will begin to feel as though you can't breath, and that is when you know it is time to get out and away from it. I know this from personal experience, and there is no better teacher than the I have been there kind of experience... A study found that the Sharper Image Ionic Breeze Quadra puts out (ONLY) 2.2 milligrams of ozone per hour -- far below the lowest limit California is likely to set., so in my opinion you do NOT want to be in the environment where a ozone generator is putting out 3000-4000 milligrams of ozone per hour for very long. Most of these purifiers that put off ozone to help eliminate VOC's, are only putting out a very very small amount - around maybe 2-5 milligrams of ozone per hour, and anything above that will have adverse effects on your health, so just be very careful messing around with any ozone generator that puts off more than 50 mg/hr while you are in that same environment. You also (very very important) DO NOT want to leave any pets in the environment while the ozone generator is running, as when you get home, your pets will be dead or suffering greatly from the exposure. People sometimes use ozone generators to kills bugs or bedbugs in a hotel, - just thought I would throw that in... I will see what I can do to create a video about using an ozone generator and seeing if a VOC monitor will pick it up as using a TVOC monitor. Great idea, and will see what I can do. I just don't want to create a bad situation for myself even for a video, as from personal experience, ozone is very very nasty stuff, and extremely uncomfortable, and also it takes a while to get over it, as a throat problem can exist for quite some time after exposure to ozone.

@@ElliotCS1.6 Elliot, I just checked by using my TemTop M10 set to TVOC mode, and turned on my ozone generator, and it did not react to the ozone it put off, so I am assuming that a ozone detector would be what you would need for knowing how much ozone was in your environment. I found an ozone detector for 100.00, but right now I just can't afford to get it, but definitely will be something that I put on my bucket list for a next monitor to invest in. I hope this information is helpful. Once I get a detector, yes, a video would be good to do about ozone, but until I can get a monitor to show the results of what an ozone generator putts off, it would probably not be a very informative video.

They do such a good job building these cheap meters making them look so legitimate. I looked thoroughly at this meter Franklin and there are no sensors except for the voc sensor. There are no lasers or infrared led's to pick up particles. I would not do anything with that meter except throw it in the garbage. It doesn't even give legitimate voc readings. I do believe it is just a lot of calculations based on the voc sensor. I really thought the other meter (that I show the guy taking two of them apart in his video) was real, but somehow they make the numbers change in such a way that makes them look legitimate. Please Franklin don't trust that meter. If you want a decent meter for smoke, get the HOTKREM PM2.5, PM1.0, PM10 with AQI. That seems to be a great little meter and it has a legitimate Particle sensor in it (you can see the sensor without taking it apart). The one you have is definitely a fake and I wouldn't trust it with any degree of accuracy at all. Yes the numbers for awhile stayed pretty close but that is why these can fool people so easily. If you also noticed that even when the other meters were well over 100, the cheap meter had settled to well below 100. if you watch the other video where the guy takes two of them apart, you will see that both of them have the same exact and only the one voc sensor inside as this one does, and if you watch the meters in action - they appear (just like this one) to be legitimate but they are not. There is nothing at all about this cheap meter that is legitimate except that it legitimately gives false information. I care about you as much as I would care about anyone else and why I ask that you please do not put your trust in any of the readings this fake meter shows. The only way to know for sure - is to get the HOTKREM meter and during a smoky few days, compare the two meters and see which one gives better and more consistent readings. ...Ok - I wanted to be sure - so I went back and reviewed the original video (before editing) and watched the part about taking this apart. I did see inside the plastic housing there was a small board inside. I unfortunately already threw this away but there may have been an led on that board that may have been a infrared led that would pick up particles, but still would not buy another one of these and trust it for accuracy. The fact that is does not have a legitimate CO sensor or Formaldehyde sensor or even a CO2 sensor makes this fake and not to be trusted...

@@Outside-In. 48:28: the top view is not clearly shown, too blurry and dark. But the back of the PCB shows the soldered vias of the LED transmitter and receiver at the corners of the PCB, in 45° angle. Seems you did not look close enough.

The laser sensors only average they dont actually measure co2. The chinese are sneeky bastards a co2 sensor is in a little rectangle metal box, but they are even putting light sensors in those now to make them look legit. Your right they just guess or average. they are meant to be calibrated in a factory to give a good ballpark indication. Id hazard a guess that none of the meters on amazon can tell co2

@@Steve211Ucdhihifvshi The TemTop meters sold on Amazon do actually register CO2 but unfortunately the two I got had defective particle and formaldehyde sensors and why I couldn't recommend them. I am going to show (without any doubt) what the sensors actually are in allot of these fake co2 monitors and it is not what you are guessing they are. I was shocked when I discovered what they are as they have nothing to do with air quality - it is registering something else. I don't want to say too much as to not give away the punch line, but I promise, you will find the video quite interesting and entertaining as I have purchased a couple more tools to be able to accurately show that sensors are actually showing what they claim to show, ultimately proving to people that a fake is still a fake no matter how the numbers randomly jump around, - and are not to be trusted.

@@horstsauer9089 Sorry about that, I just noticed this comment - usually I am notified, but I guess this got missed... You may have seen I did another video to prove once again the monitor at 48:28 is fake, so hopefully my second attempt was enough to stop people from wasting good money on a lie. Thank you very much for your comment - it is much appreciated, and again, sorry it took so long for me to see it.

Thanks College, much appreciated comment.

Unfortunately I think you are right. There are so many fake ones out that it is almost a gamble which one to buy, and because some fake monitors are getting more expensive, it is harder to know that more expensive means real... Kinda like where AI is going - - soon it will be hard to tell the difference between a fake photo or video from a real one??...

Thank you Tippy for the comment. You just have to be careful about "published sensor information", because I have seen an air quality monitor (a fake one I show in this video from Amazon) that published it had the sensors advertised, and it even showed photos of the sensors, BUT when taken apart - there were no such sensors inside - ONLY the one voc sensor that is in most of these fake monitors. That is why I don't recommend any monitor that I haven't physically touched, tested, and taken apart to verify what is inside is what is stated to be inside. I have also seen that some of these fake monitors are now selling for close to (if not more than) 100.00, so just be careful and do your research before making a purchase.

Shobuddy, I just thought I would reply again to say that in a couple weeks I will be creating another air quality video that includes the AirKnight 9 in 1 monitor, and I am looking forward to doing another tear-down and comparison video for sure. Also in the line-up is one of my favorite meter making company's "Smart Sensor". I just found out they make a 5 in 1 monitor, so I decide to make the purchase and compare it with the AirKnight 9 in 1 that someone had asked about recently.

@@Outside-In. can't wait!

@@shobuddy Neither can I Tippy - Neither can I...

Talk about Ironic... I am in the process now of building a new case for testing monitors, and am building it so I can create a vacuum inside to more precisely test monitors. I couldn't afford to get 1/2 inch acrylic, but am using 1/4 inch, but it should be strong enough to create a good enough vacuum for testing purposes. I just want to create a case that won't let anything out or let any contaminants in while testing. Great idea though, and thanks for the comment - much appreciated. 👍👍

It is ok to defend the TemTop. In this video, I speak about the two defective units that I received, and my horrible experience with customer service. However - the other TemTops I own are great devices. You are right, the CO2 is quite accurate on the TemTop M2000, but my problem was not with the CO2 reading, it is the device as a whole. I will be doing a new video review of the TemTop M2000 2nd edition that TemTop sent to me about 2 weeks ago. Yes the Senseair S8 is a great sensor for home use, and quite accurate, but when you buy a monitor with multiple sensors, and has two sensors you can't trust, it makes that unit not worth owning. I have several videos about air quality where I recommend TemTop monitors, just not the M2000, but the M2000 2nd edition is a good monitor that I will be reviewing soon. Thanks for your comment and thoughts - much appreciated.

Thank you for the suggestions. The Qingping is one I have been looking at, Airthings, and Honeywell also, but where am I going to get the money for all these???.. I can only do so much on my own, but I do appreciate the suggestions, and will be able to get to more when I am able to actually make money with KZfaq, but for now, I just have to keep using money out of my own pocket, and why these videos are so far apart at times... I will do the best I can. 👍👍

calypsocat thanks for the information on the M2000 2nd edition. That is good to know that they fixed problems with the 2nd edition. Happy to hear it is working fine for you.

Which monitor are you speaking of - all these monitors except for one was purchased on Amazon...?

@@Outside-In. tks for your reply. I was asking about Amazon Smart Air Quality Monitor - Know your air, Works with Alexa- A Certified for Humans Device

@@claudiogobber Sorry Claudio I don't know anything about that monitor, I will have to look into that one. Do you have a link to the one you are talking about?. Thanks ...Never mind Claudio - I found it and yes it looks quite interesting and would love to test that one and do a tear-down especially since it has a carbon monoxide sensor - would love to know if it is real or not... Unfortunately I don't have the finances to make a purchase like this right now as I spent all I had on doing this video. Hopefully some day I will be able to buy multiple devices at a time, so that I would be able to do more of these side-by-side comparisons and tear-downs - so people will know (without a doubt) what they are getting instead of just hoping they are getting a legit product....

Thanks for another monitor to look at. I will have to look into this one.

Thank you T Heamanth for the question. I could not give a opinion on a monitor I have not used. I did look at these, and for the price, I would go with TemTop. The Prana only does PM and AQI, while TemTop does PM, TVOC, HCHO, AQI. It just depends on what you are looking for as far as air quality. I am finding however, that unless you spend 200.00 or more on a monitor, it is a hit and miss for quality and longevity. I know this probably doesn't help much, but I can't offer a recommendation on a monitor that I have not tested, and taken apart for review. If I am able too, I could look into purchasing the Prana for a review video, but right now, I just can't afford to purchase any monitors for review, but hopefully soon.

@@Outside-In. Thank you very much

@@t.heamanth5127 You are welcome 👍

Well Denise - that would be a very hard thing to do without testing every single monitor made, and that would take more money than I could earn in a lifetime LOL... I was being a bit sarcastic there, but if I were to recommend the best of all the monitors I have tested to date?... It would be as follows... 1. Smart Sensor CO meter 2. Smart Sensor CO2 meter 3. Hotkrem CO2 monitor 4. Hotkrem PM monitor 5 TemTop M10 6. TemTop C10 Also here is something else to consider pertaining to your question... The best air quality monitor to buy, would cost 10's of thousands of dollars, and is also one that I will never be able to get in my lifetime I am sure. "The best", is subjective of course, so I guess we could say - the best in a certain price bracket, so my list above is based on what I have tested personally, and also in the more budget friendly market. Hope this helps, and thanks for the question Denise - it is much appreciated. I am getting ready to do two more videos very soon, so maybe we will find a new "best" of all that I have reviewed to date - who knows right?...

Thanks for the question. The Hotkrem is the most budget friendly if you are looking for PM readings. If you need HCHO also;, the TemTop M10 would be the way to go.

@@Outside-In. thank you sir🙏

Thank you Anna for the question. Unfortunately I have not tried the EG apt quality monitor but will look into it.

Hello Anna, just got home from out of town and looked up the EG monitor. It is the same thing as the one I show in the video - just under a different name. Yes they are good monitors - they may not be exactly spot-on accurate, but definitely good enough to know the quality of air in your home. There are a number of these monitors that are the same, the only real difference is they all have different names and may also differ slightly on the functionality between models. Hope this helps Anna.

Thank you Milky Smokes for the question, and I have looked a little into DIY monitors, but they can be more expensive than just buying one already made - unless I missed something. Do you have anything specific in mind?.

Actually the sensor in the fake monitor was an alcohol sensor, and not CO. Thanks for your comment, and glad you have one that works.

Yes, TVOC takes a few moments to heat up before they start working.

Thank you PKD for the question. I am looking on Amazon and there is nothing for the airwair element, so maybe you spelled it wrong. Also I find nothing for EG Egress monitor either, so maybe that also is spelled wrong. Or if you have a website these are sold on, I could look there. As far as the Airthings wave plus monitors. I would not review a product that I would not buy myself. The Airthings and some of the other monitors require Alexa or a subscription based app to view the data. There are plenty enough air quality monitors that have actual displays without the need of an app. An actual display in the device that I am using is what I want - not another app to have to install. The Airwair Element, and EG EGress you mention, since I can't find those, I don't know if I would be interested or not. Also some of these monitors are getting very expensive, and so far I am getting no help from anyone, and simply can't afford to purchase any monitors at the moment for testing and review, but like I say, I would not purchase or test anything that I would not buy and use myself. I definitely thank you for your question - it is much appreciated.

@@Outside-In. Hi ,Thankyou for replying .Yes I had mis spelled it ,it is "Awair element" not airwair ,also another is "EG air quality monitor" exclude egress and search it in Google you will find it .I am specially looking for a air quality monitor which uses sensirion sensors because they make dedicatedly environmentle sensors.Please let me know if you are aware about any air quality monitor that uses sensirion lastest sensors.Thankyou

​@@pkd2411 The Awair unfortunately is not one that I would be interested in purchasing so couldn't recommend or test it. The EG is however a good monitor, just like the Hofun in the video. The EG (unlike the Hofun) has a calibration function that I really like and wish the Hofun had. I will look into the Sinsirion Sensor and let you know if I can find any specific monitor that uses this sensor. Hope that I was able to help.

@@Outside-In. yes that help thankyou very much for your suggestions

@@pkd2411 👍

Thanks William for your comment and thoughts. Yes it is unfortunate that the Hotkrem has fallen in popularity. I have tried to contact Hotkrem, but they have not responded to any messages I have sent, so therefore I cannot promote Hotkrem any longer. I will definitely not be recommending the Hotkrem any longer which is unfortunate because I liked it so much. The two Hotkrem's that I have are still working great, but to get one (from all the negatives I have seen) that actually works seems to be a gamble... The Qingping is a monitor that I have been looking forward to testing, and when I can afford to do so, I will be purchasing one for review.

Update: I received my new Qping lite yesterday, and so far I am very impressed with this unit. First of all, it is small, so it can be placed just about anywhere easily. My initial observations are that it is also very accurate.I initially thought the temp and humidity were off, but after letting it acclimate overnight, it is reading just about dead on on with the local purple air station a half mile from my house. But if for any reason the sensors drift over time, the co2 sensor can be either manually or automatically calibrated, and all of the other sensors can have an offset added to calibrate them to a known source. All of this is done through the qingping+ app. The app also logs up to 30 days of data, can set up notifications, and can configure some display options,as well as update the firmware of the device. Overall, I am very impressed with this little unit. So much so that I just ordered a second one so I can put one in the living area and one in the bedroom.

​@@williamwagner-tt7vu Thank you William for your comment and experience with the Qingping, sounds like a nice device, and happy to hear you are enjoying it. Hopefully it stands up to time. 👍

Thank you for this information, I will have to check these out. Sounds like a great video to do for comparison. I have been looking for a legitimate monitor that does CO as well. It concerns me, however, for 69.00; but will definitely check it out. The other monitor sounds interesting as well, so will be checking that out also. Thanks so much for this information - much appreciated. However, I can't recommend any monitor that I have not tested and tore down, but I will see what I can do. My funds are very limited, so it may take me a while to be able to purchase them. 👍

Ok Laurie. I just went and had a look at the Awaki 9 in 1 CO monitor, and from my experience over the past year, it looks very much like a fake monitor. I will do my best to be able to get this, however, so that I can verify that assumption, but please be leary of this device until I can get a chance to check it out. In the meantime, do the test I show in this video about how to test a CO meter, and that will give you an indication of its legitimacy. Hope this helps

Great thanks so much! I look forward to reading about your findings of the two!@@Outside-In.

Laurie, just thought I would stop by and let you know that I was finally able to place an order for the iwaki 9 in1, and hopefully will have it by the end of the year, and will do a review and teardown right away so you will know, and myself also whether it is to be trusted or not. I suspect it is a fake, but now we will know. I can't afford the other monitor right now, but I do believe that one is legit, so my main concern for you was checking out the iwaki...

I agree, and thanks for the comment - much appreciated.

​@Outside-In. Hey there outside. I started getting headaches, a sore throat, and a bad feeling in my lungs, while in my apartment. And something that's adding to my paranoia is that these symptoms happen on random days, and they started happening after I got into a confrontation with my downstairs naighbor. I thought my air quality was just bad so i got a clorox air purifier that has a PM2.5 air sensor on it, and on random days around 7pm to 12pm, and 8am to 12 am the sensor starts reading around 10-30. I know that the most common form of air poisoning is carbon monoxide, but is there any other kind of air pollution I should make sure my air sensor has?

@@TheRealPaul_Morphy ​ @TheRealPaul_Morphy Hello Paul and thank you for your comment and concerns. First of all anyone who has a confrontation with a neighbor, and suddenly starts having symptoms that you describe, and have not had them before the incident - would be easy enough to become paranoid about the confrontation... Secondly: There is some troubleshooting steps one must take to evaluate the paranoia... A. Is the person with whom you had the confrontation someone who has a vengeful personality?. B. A person who does not get along well with others?. C. Have you changed anything (routine) that you normally do lately, and may just be coincidence to the confrontation?. D. Are you lately using cleaning supplies that you do not normally use?, as ammonia would cause the symptoms you describe - believe me - I know this from personal experience and why I had to stop using ammonia based products. C. You say the person with whom you had the confrontation with lives below you, but do they live directly below you, or does someone live in an apartment between the two of you?. If there is someone living between the two of you, maybe you could find out from the neighbor directly below you if they are having the same or similar issues at the times you specify. E. If it is ammonia causing the issue, you would know from the odor as ammonia has a potent odor, and will also cause you to have breathing issues as well. Ammonia is very very toxic, so check all of the cleaning supplies you use for an ammonia base (it should be in the list of ingredients). Thirdly: 10-30 on a PM2.5 monitor is fine, and nothing to be worried about. Dehydration can also cause headache and sore/dry throat, so check you humidity levels. This time of year, when the weather is constantly changing, it can cause sickness such as a common cold, pneumonia or the flu, and the Flu and Covid can and will cause these symptoms as well. It may be that the confrontation is nothing more than a coincidence, and you have possibly contracted the Flu during this time. Without knowing more about your situation and environment revolving around the confrontation, it is very hard to asses what may be happening, but I do hope that the steps I presented above will help to eliminate your paranoia about the neighbor. CO and CO2 poisoning has many symptoms, but they both start out as your symptoms you are currently having. I nearly died from CO poisoning, so I have a lot of experience with how the symptoms start and progress. BUT we have to be very careful with specific information as that also can lead to false symptoms. The mind is a very powerful thing but so is paranoia. The most important thing is that you need to find out what is causing your environment to change randomly. I would suggest that you get a CO monitor and also a CO2 monitor as those are the two MOST important monitors a person needs. CO and CO2 are both tasteless and odorless, so you don't even know they are there and why it is so important to be able to keep an eye on their levels in your home/environment. I am so hoping that the confrontation is just a coincidence. High levels of any gas can cause (in the beginning) headache, sore throat, breathing problems, and without correction can later lead to nausea/upset stomach, vomiting, convulsions, dizziness, euphoria, memory loss, muscle control loss, a feeling of being drunk, stumbling, falling, flashes of scattering light in your vision, closing eyes and room spins around and around. I have mentioned all the symptoms that I had personally when poisoned, but at the time, I had no idea about CO or CO2. There are many symptoms caused by gas exposure, but the more severe symptoms take constant exposure for a few days and up to a week to appear. The only symptom I did not get (thank God) was death, but it was very close, and the loss of muscle control was the most embarrassing, as I was behaving like someone with Parkinson's disease. It was a pretty scary time for sure. The first step is to find someone with a few monitors that can check for things such as CO and CO2 levels. CO should NEVER go above 1pm for any length of time. Some will say don't worry about CO if it is 50ppm, but that is horrible information, and also a lie. In your situation, I would definitely be checking my CO and CO2 levels during the times that you have described. Check with other neighbors to find out if anyone else is having the same symptoms during the times you state. It is all about troubleshooting and not letting paranoia get the best of you. I hope I have been able to help and give you peace of mind. If you can't afford to get CO and CO2 monitors, there is also another option, and that would be to contact your local fire department, and explain to them your situation, and they may want to come to your apartment and use their professional meters to check things out for you, as it may also be a gas leak that only occurs at certain times. Just be careful about contacting the Fire Department, as they get 100's of calls every year due to paranoia that turns out to be nothing. Another step you can take, is when the symptoms happen, immediate go outside into fresh air, and if there is a serious issue, your symptoms will go away while outdoors, and then go back inside to see if the symptoms return, and if they do, then you will know that there is something going on that needs further investigation. I hope that I have been able to help, and I also hope that it is just paranoia. Keep us informed if the symptoms persist or go away. Thanks again for your comment and concerns, as your solution may help others going through similar circumstances.

Thanks for the comment and insight - much appreciated. 👍

You are welcome Kelvin. Am getting ready to do a video comparing two monitors just sent to me, and should be quite interesting for sure.

The TemTop M2000 2nd edition seems to be the better one to have, and don't know much about the "c" version. As for your question about calibration. Most monitors' AQI reading is based upon all the sensors that are in the device, and not the AQI in a certain area or town. I would say that even if you do a calibration of your monitor at your house and take it to town, it will not be the same number, and more than likely it will not even be close to the town's AQI. Usually the AQI number is based on the device's sensors, and why most monitors are not even close to the AQI in their local area. Unfortunately I don't have a go-to monitor right now because so many monitors or beginning to be a hit and miss on accuracy. The AirKnight was my favorite until I discovered that the AirKnight also has problems. AirKnight is working on a new monitor and hopefully will be ready to purchase by the end of the year, but until I review and test it, I won't know for sure it is a better choice. There are too many companies more interested in making money than putting out a quality device. The two most important monitors to have are a CO and CO2 monitor. The best thing to do is to have a decent air purifier that runs 24/7, and have good ventilation. Even the TemTop M10 I cannot recommend any longer, as I just found out that it does not have a legitimate VOC sensor inside, as it used the HCHO sensor to calculate a TVOC reading (which is pointless in my opinion), but the M10+ will have a VOC sensor inside, but no HCHO sensor which doesn't make any sense to me. It is getting harder and harder to find a quality monitor, and even to the point that it may actually be better not to have one than to have one, and that is because the quality of most of these monitors is continually going down, as I have had a couple companies turn me down to review their products, and more than likely because they don't want to be found out - just an assumption though.

@@Outside-In. Thanks for your reply. I've been thinking about another issue which I rarely see addressed which may suggest that, in many cases, an air purifier is a semi-futile enterprise: Unless one has a very tightly sealed house (which is rarely the case), there are multiple air exchanges per hour through the various leaks that naturally occur even around well built windows and doors. As a result, how can air-purifiers keep up? Isn't it like air-purifying with a window open? I would think that this would be especially problematic in urban areas with a lot of PM2.5. Wouldn't new particles be constantly coming through the air-leaks from the outside? Even if the air purifiers are major capacity, I would think they would have trouble keeping up in a typical apartment or house built decades ago.

@@VelvetRockStudios ​ @VelvetRockStudios Air purifiers are mostly used in the winter when doors and windows are shut. Yes in the summer, you may not need to use an air purifier if all your windows are open, and you have an intake fan and outtake fan keeping the air within your home fresh at all times. At night when you close some of your windows and turn off ventilation fans, then it would be good to run the purifier to clean the air. Most of the time, we can use common sense to know if we need an air purifier running or not in our homes. In my humble opinion, there are too many people that have paranoia these days about air quality which leads to sickness and unhealthy living... For hundreds of years no-one used (or even head of) an air quality monitor, and they lived to a very old age, but now people are dying much much younger, and I believe it is because of the paranoia surrounding air quality. The most important monitors to own are CO and CO2. If a person is going to be paranoid about anything, be paranoid about those two gases that we cannot see or smell. Particulates we can see, TVOC we can smell, and HCHO is in everything and everywhere, and there is no way of getting away from it. HCHO is abundantly in the forest and plants, and has been since the beginning. The best thing that we can do for our health, is to not become paranoid about air quality, and to love life, not be afraid of it. Companies have created this panic just to make a sale. Just try and remember back when people abundantly went on camping trips, and enjoyed family and friends over a camp fire for hot dogs and marshmallows. Now since all this about air quality has started, see how much less people are getting outdoors for camping or enjoying each others company around a fire, which has resulted in much more sickness than normal, and also depression. This air quality ordeal has gotten way way out of hand. The ONLY time that I get out a monitor is just to check things out from time to time.

👍

Thank you Richard for the comment, and yes, I would have loved to give the 2nd gen a try but unfortunately I can't afford that one as it is more expensive. When I contacted TemTop they didn't even suggest that the 2nd gen was a replacement with better sensors - TemTop just wanted me to buy one of the even more expensive models than the 2nd gen. I also believe that the 2nd gen has data connection to monitor readings over time.

@@Outside-In. Thanks for the quick reply and your video content was excellent! It’s hard to find’s reviews sometimes.

​@@richardo4878 Richard - I know what you mean. While researching products that I am interested in, sometimes I find that I come away with more questions than answers, so I use those situations to give me a cause/idea to create another video so that people can find the answers they are looking for. Allot of reviews I find seem to be more an advertisement than a true test and review... :)

Hi ,Can you suggest me an accurate air quality monitor ?

@@pkd2411 Yes PKD. There are at least 4 in this video that I recommend. I would love to be able to do more testing and reviews, but there are so very many air quality monitors, and some very very expensive prices to go along with them. I have a very limited budget which does not allow me to make elaborate purchased to review and test products. I wish I could buy everyone that someone wants me to test, but that is absolutely and fortunately impossible for me to do.

Thank you Claudia for the comment and question. I have looked into this meter/monitor and I would love to do a review, teardown and comparison with my known good metes - but MERCY SAKES - this thing is expensive, and unfortunately I do not have that kind of money to make a purchase of this magnitude, beside I am going to have to overdraw my account just to make rent this month. Wish I could help, but I will say that this looks extremely interesting and would love to give it a try and especially see what's inside, but unfortunately it is outside my range right now. If I do however have a chance and am able to get a bit extra finance - I would love to purchase this monitor and give it a go for sure. Thank you very much Claudia for bringing this device to my attention, and it will be the next item I will do my best to be able to purchase one day and do an in-depth review of.

I am so sorry Ruudy, I have been responding to so many questions in the past couple of days, that I am starting to get confused with whom I am speaking too. I will have to go back and review those comments, and I will be right back to answer this concern about your CO2 meter. Please, I know I had asked what the name of your meter was, but you did not respond, so if you could tell me the name of your meter, I would be happy to look into that specific meter, and why I would have suggested it was wrong. Sorry again, as it is hard to keep up with everyone at the same time LOL....

It is hard to keep up with you, as you have watched so many of my videos and thank you for that, but it is very hard to follow your questions from one video to another especially when your comments are referring to a different comment on another video other than this one. I have went over I believe every comment that we have had on all the videos that you have watched..., and I see no comment where you mention 544ppm and in the green... The only comment I saw where I suggested the CO2 was wrong, was the video that you had said your CO2 reading was 422 - not 544, and all I was suggesting is that 422 is not a very good reading, as that is way too low for a typical home environment. A real CO2 detector, will show 500 to 800 on average for normal air quality, and some times, that number may even go as low as 465 or a little higher, but a monitor that shows in the low 400's, is not likely, unless you go under ground. If you could point me to the video where you mentioned 544ppm, I would be able to help better, but I really need to know the name of the Pro CO2 monitor that you told me you have.

Ok RuudyL, let me see if I can address your question about the "chart" that I show in the video, that says in the green is between 400-650ppm... First of all, these are NOT my numbers.. These numbers and charts, are from the Scientific Community, and they are nothing more than a base-line for knowing what CO2 levels can be... The reason that the Scientific Community states 400 as a low number, is because 400ppm is going to be the lowest number that you will ever see on a CO2 device, unless you take that monitor, and go under-ground, and only then will the numbers go below 400ppm. Right now, the atmosphere has a CO2 concentration of about 415ppm, and at ground level, it may be (depending on where you live), be as low as 404 to 410ppm, so your inside CO2 levels will never be that low, unless you open all your doors, all your windows for about an hour or so, but as soon as you close your doors, and your windows, the numbers will go right back up to a normal levels of around 600 to 800ppm, and maybe even 500 to 800ppm, again, depending upon you specific region and environment. According to the Scientific Community, Normal Levels of CO2 in a HOME - is going to be between 600 to 800ppm, and that is the average of homes they have studied over the years. It is possible that CO2 levels, CAN go down as low as 455ppm or so - inside of a home, but that greatly depends on how many people are in that home at the time, and how often they breath in and out (which is pretty often), so it is not likely to see numbers go that low inside of a home with windows and doors closed, especially in the winter time, as it is too cold to keep them constantly open, and also why CO2 levels typically are higher in the winter than they are in the summer inside your home. I just checked with my CO2 meter, and my outside CO2 level goes down to 424ppm, but when I bring it back into my home, the CO2 goes back up to 600 to 705ppm, which is typical in my home, but won't be the same in someone else's home. It also depends on where you are living on the planet Earth, as the CO2 levels are very different based upon where a person lives. However, 422ppm (which is the number you told me in a comment), is not likely at all on the inside of your home, and the reason for that is because we as humans expel around 35,000ppm CO2 with every exhale when you are breathing, and that number accumulates over time inside your home. Without proper ventilation, your CO2 levels will begin to rise, and if you have more than one person within your home, that number will rise much higher, and why ventilation is so very important to remove higher levels of CO2 from your home environment. You mentioned that you have a Pro CO2 meter for testing CO2 levels in your environment. Could you please give me the name of your CO2 meter, so that I can check it out?.

Thank you nio for your comment. If you look in the description of the video, I have included Amazon links to all the monitors and meters used in this video. If you need links to something else, please let me know specifically what you are looking for and I will be happy to add that here. Thanks again for your comment and question - much appreciated.

Oops sorry I didn't scroll till bottom, noted thanks

Fluke is a particulate meter only, and I don't know anyone with a 7,000.00 meter that would let me borrow it. If I had to choose a "standard" for testing, it would be the Hotkrem, as that seems to be the most accurate and consistent so far that I own. I will soon be putting it up against a TemTop M2000 2nd edition.

Thank you Josh for the comment and suggestion. I love doing comparison videos, but the cost is killing me to keep reviewing Air Quality products as they can be very expensive... That said... I looked into this monitor, and it would be something very very interesting for me to create a comparison video that I would absolutely love to do, so I contacted Dylos directly, and spoke with a woman there, and told her what I had in mind, and that I had gotten a request from a viewer to do a review of their product. Nicole told me that the owner Roger would be the best person to speak to, so she took down my information, and said that she would have Roger get in touch with me. I am looking forward to talking with Roger, and hopefully he will be interested in sending me their pro version so that I can do a review and comparison to the other monitors I have already tested. That would surely be a fun video for sure. I just don't have 260.00 right now to purchase this device or even 200.00 to purchase the standard version, and am not sure Roger would want to send one to Outside In since we are so small - Not enough subscribers yet LOL... I will do my best to convince Roger that he will get a great review if their product is what they say, and after much research, I am positive this device is capable of what is claimed, but unfortunately for now, I just don't have the money available to make a purchase. The only company to send me a product for review was the AirKnight 9 in 1 monitor, and after the video, they cut ties with me because of my honesty, so not sure what will happen with this one. I hope and pray that it is in God's plan that you contacted me, and if it was, then I see no problem why Dylos would not send a device for me to review, or allow me the finances to make the purchase... Let's keep our fingers crossed, and prayers going, as I would be excited to do a video review of the Dylos 1100 Pro. The Pro is the same as the standard, but the Pro is more sensitive to smaller particulates which would be the better one for testing against my other monitors. Thanks again Josh for your comment, and let's hope that Dylos will be happy to send their device to us for a review and comparison video... Will let you know of the outcome.

Hey Josh, just thought I would let you know that Roger from Dylos contacted me, and we had a great conversation about their DC 1100 Pro PC, and this will be great for those that want to record a history of air quality for review. Dylos is sending me their DC 1100 Pro PC version for review. The PC version allows you to record unlimited data using your Computer. It is going to be fun to test, teardown, and review this monitor. Thanks again for the suggestion, and it will work out that I can in fact do a test & review using the DC 1100 Pro PC air quality monitor.

@Outside-In. That is fantastic! Kudos to reaching out to Dylos and speaking with Roger. I will be looking forward to future test. As noted, the DC 1100 will only detect down to a .5micron level. This .5 to 2.5 micron range should be the left display of the unit while the right display is calibrated for particles 2.5 micron and above. Fine particles as defined by pm2.5 include particles less than or equal to 2.5 microns in diameter. (Not even a Dylos DC 1100 is giving a true representation of the true pm2.5 level as it only detects down to a .5 micron range) These fine particles account for roughly 9% of the air we breath. This topic is of vast interest to myself, and I am no expert by any means. Although i beleive The Dylos DC 1100 to be a superior test instrument to those previously tested it would still be an insufficient test instrument for even HEPA level filtration as hepa is 99.97% down to .3 microns. Smaller than the .5 micron range of the DC 1100). Another point with HEPA as it stops at the .3 micron range for testing/certification purposes is that you still have the potential for airborne pollutants to be present 100 times smaller down to the .003 micron range than HEPA is rated to filter. What stands out the most to myself is that ultrafine particles in the .003 to .1 micron range account for 90% of all airborne pollutants. These ultrafine particles when inhaled are deposited into the lungs, can penetrate tissue, absorb into the bloodstream, and reach any organ. These non visable particles can include but not limited to cooking, smoke (including wood, cigarette, candle, incense), pet dander, soot, and viruses. I think more emphasis is needed on these ultrafine particles, the filtration needed that exceeds HEPA standard, as well as testing equipment capable to detect at these sensitive ranges.

​@@joshsansone5113 Thank you Josh for that detailed and deep dive look into particulates. I love to learn, and why talking with someone like you is a pleasure. I understand your interest in understanding these small tiny contaminates as I do as well, and my interest has grown since starting these comparison videos, but what everyone needs to understand, - is that we do not want to be able to filter out all particulates that invade our lives, as doing so would surely lead to an early death, and I say that because, our bodies are built specifically to protect itself from sickness and disease, and therefore in our young years we need sickness and disease to invade us so that our bodies can build the appropriate anti-bodies to fight off infections and sickness later on in life as we get older... When I was a child, my brothers and myself would play very hard outside, get cut, get sick from sweating in the winter months, breath in all kinds of contaminates etc., but what happened as a result is that our bodes built up such protection, that we nearly never got sick, and even today at a much higher age, still don't get sick as much as others, but today, people are so worried about the "floaters" out there, that they do everything possible to get rid of those, and ultimately create a (as near as possible) sanitary environment to live in, and that is why so many young people are dying today from a simple sickness, and that is because their bodies are not strong enough to fight off the simplest of invasions to their body. Being conscious of our environment is a great thing to help protect ourselves, but if some becomes paranoid about what we breath, it can and will lead to over-protecting ourselves - ultimately leading to our undoing... Just my two cents LOL. I am going to have to look into a way to inject smaller particulates into a closed space with the monitors to see which one detects and which ones don't. Do you have any suggestions on how I can get a hold of the smallest particles possible to use in a test?. By the way - I do hope that your interest is purely scientific, as it does seem to be, because we definitely don't want to live in a bubble LOL, or at least I don't... Being paranoid about air quality, can in itself be very dangerous to our state of mind, health and well-being, leading to sickness from nothing more than anxiety and stress. ...We can be our own source of disease and sickness - using nothing but our mind...

@Outside-In. @Outside-In. solely scientific purposes. We do not do anything out of the normal for home filtration. However, I am looking to improve our current air quality as we are utilizing two Corsi Rosenthal style designs equivalent to about a merv 13 rating. I agree that exposure allows our bodies to use its natural defense system day to day outside, at work, etc I am currently unaware of a source for ultrafine particles that could be used in a test setting. I would think a commercial grade air quality device capable of detecting those ultrafine particles would be a starting point. As normal air carries many ultrafine particles. I do understand this is most likely cost prohibitive for the channel.