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Senku also said breath slowly or you'll overload it, but then you hooked it up to a vacuum pump. If you want a fair test hook it up to an aquarium pump. The air flow will be closer to natural breathing, just with infinite lung capacity. Senku also had lacquer thanks to the villagers. It's a better sealant and it's more durable. Just a few notes from a fellow fan of Dr. Stone. Other than that and making the hose to short, flawless job on the mask.

I suspect that in the chlorine test you just overwhelmed the filter. There was a crazy concentration of it in the container an a pump sucked it at a good rate. The charcoal didn’t have time to react.

Thanks for having me out Andy! This was a super cool project that people have wanted me to test for a long time, and I just KNEW you were the perfect person to do it with!

I was literally just thinking today, “I wonder what happened to HTME… they haven’t uploaded in a month.” Super stoked!!

I'm happy someone is speedruning technologic history of the Human builds in the Meta. It makes me feel like I didn't make the wrong build.

Imagine going shopping with that on. You'd have security eyeing you. "Don't worry good sir, I brought my own mask"

In the anime they have a master craftsman to help them make what they want. This channel really doesn't have that so the fact that it even sort of works is kind of impressive.

"I wouldn't trust my life to this but if I had to trust my life to this I'd trust my life to this"

You know, the fact that you have to remove your foggy glasses, is a fairly good indicator that it is not airtight. Fellow glass-mask guy here.

You know, I actually learned something from this show.... As a kid, I always thought that we just had crappy sawblades with their teeth bent... And as an adult, it never came up so it was never corrected...

17:04 Fun fact in the show they explain that the masks will only last for so long so they have to work fast while not breathing up all their filtered air.

You could theoretically seal the edges of the mask to your face with clay or mud, but then you wouldn't be able to talk or move your mouth much without breaking the seal. Awesome video, now I gotta go watch Dr Stone lmao

I definitely think that the chlorine gas produced in that box was way more than the charcoal could effectively absorb. Maybe if it was a lower concentration mix with the air, the results would have been better?

Having recently taken up leather crafting I'm suddenly very happy to have modern steel knives that are very sharp.

5:42 I've watched so much Forged in Fire that I instinctively found myself shouting oh no not a burn in!

waiting for Private Internet Access or NordVPN to sponsor the next video with a guide of how to circumvent regional blocks (for example on crunchyroll lmao)

YOOOOO you got the sponsor!!! Yeah man! Im glad they finally wised up, cause I dont know a better video to sponsor than one of yours!

I'm glad to see Louis' project completed! Good job everyone.

Really happy to see Louis popping off, he deserves the recognition.

Petition to get this man an anvil now that he's unlocked iron because im tired of seeing rocks break every time you forge on them

Him a couple years later be like: Today i am going make a nuke

If you can't beat 'em Join 'em!! Great work guys! I hope to offer a few pointers that might have made this more feasible for things that would have been known both to Senku and Kaseki. 1) I don't think the anime explains where he gets it, but in addition to the activated charcoal I believe Senku used Potassium carbonate, which (and again my chem is rusty and I was never that good to begin with) would have caused a double replacement decomposition I think leaving you with Potassium Sulfate, CO2 and Water. Someone that knows more about volcanic gasses and has had Chem in the past decade please check me. 2) Senku mentions it in the Anime, Hydrogen sulfide is denser than air, so it pools, and that's why his masks have the big glass chimneys. They're trying to pull air from where it's safer. Provided you have good seal, this is important. So the next tips will deal with how to ensure good seals. 3) Senku has billows, and they have a shallow pond area if you have someone to take the place of Ginro and Kinro, you can use the billows to inflate your tubing and check your tubing and mask for leaks, as steady stream of bubbles will let you know in a hurry where your problem area is. Or, and this is not shown in the anime, if you have bamboo and caveman glue or pine-tar etc. You can actually create any number of air or water pumps from that nearby waterfall. 4) Leather & Tube Tips: A)Making seamless leather tubing is hard, I commend you on what you've done. But there's an easier way, There are animal organs that you could prepare or use as an overwrap to make sure you contraption is actually gas tight. B) Keep in mind that all leather products are going to have a limited shelf-life and probably would need to be waxed before each use, C) The duct tape was a good idea, but you can improve seal over the mouth in several ways, such as taking the time to shape and fit the mask to the single face it was intended for (can be done with stiff leather, oil, and wax), you can fold the outer lip of the leather over to make a better seal / gasket that with crush / deform around your face better and make a more airtight seal, you can knead things into wax and create a semi-seal D) If you have a hand-spool and know the right knots, you can actually tension the leather down over the bamboo so tight that pitch / wax isn't truly needed, it's more of a secondary seal 5) Garrett Morgan's precursor to the gas mask consisted of multiple tubes to get to "clean air" (was also made of canvas, so you know leather can do the trick. Anyway, my point was if your air tube is located somewhere in the middle of your filter you could might potentially be able to trap any Hydrogen sulfide below your air intake, it's not that much denser than air so that's a maybe, but it'd be something to boost the effectivity of your device. Love the show, love the channel, those weren't criticisms, just somethings to consider. Before the reboot you'd occasionally try redoing things so maybe this is one you'd come back to. Last thing, you're doing great. More than a few things on Dr. Stone don't make sense. Chalk it up to even genius science users don't know the best ways to do everything. Your channel is awesome and thought provoking. Keep up the great work!!

It would be interesting to compare this to the last-resort method used by soldiers in WWI: Urinate on cloth and breathe through that. Obviously, don't show the "making of" that, and I'm sure it didn't smell too great, but it is something possible with the level of tech you're currently at.

I bet the problem was with the charcoal. They should have tested it against store bought activated charcoal to see if it was working.

Really makes you appreciate all the hard work Senku must have done off screen.

If I used clay pots as often as you do, I would make one with a spout so I could pour all the liquids without spilling as much.

Guess it's time for Dr. Stone Anime and Manga to start from scratch again.

As some others have also said, if you use that leather tube again, some ribs inside the tube will keep it from collapsing then there is negative pressure such as breathing in while using this gas mask. Great video!

This series is just *AWESOME*

To make your rock anvil more stable, try putting it on a shallow container filled with sand and/or small rocks.

man make more drstone stuff maybe a smoke bomb i love these doctor stone episodes

yoooo your smithing skills picked up quick! thats a pretty clean shape!

Awesome, SenkU for the video!

Louis is my boy so glad you guys worked together

I’m sooooo excited for this. This is my favorite channel and I am very impressed by every video

Your Blacksmithing has Improved!!! 1

Bro, give yourself a pat on the back. Easily one of your most epic episodes ever! Awesome awesome. 👍😎

You didn’t actually make activated charcoal, the potassium carbonate doesn’t „activate” it, but it helps, running 300°C steam trough it will. Cody wich you made glass with has a video on activated charcoal

KZfaq still doesn't put these videos in my recommended feed even though I watch every video on release and have subscribed and notifications turned on. I'll keep thumbing them up and hoping for the best :)

Suggestion for Anime to watch Ascension of a Bookworm, By the Grace of the Gods and Knights and Magic.

The rabbit reminds me, have you gone over tanning leather? (You probably have I just don't remember). I would like to see you go over textiles and clothing, using skins and leather, along with linnen and silk. And any other cool stuff you can do with that.

Never heard of Dr Stone but it looks great! Going to have to add it to my list

It’s nice to see that not everything goes well in the making process, like when the stone broke when it was being used as an anvil for forging.

Yes finally a new video!!! Love your videos btw ❤️

I like how much Lewis helped in this project

This video is really cool. Always interesting when you post.

Every video I open up of yours is like Christmas.

Always excited when you upload man

I'd say that especially since in the show they spent I think a bunch more time making multiple iterations on the mask system, so assuming that the issue with the one in this video was a hole in the tube or something, I'd definitely believe that with a few more attempts at making more airtight of tubes, as well as with some more work put into tightening up the seal on the mask bit, this could absolutely work.

Let's go, another Dr Stone episode!

Aw that's amazing! I learnt about dr stone anime trough your chanel and I love it. It's so cool you make it happen. I'm entertained by every second of your videos :D

Good collab! I've been missing your vids :)

bro ive been reading the manga for the past 3 years and idk how to describe my joy about this

I just started the show and immediately thought about this Channel and of course you already have videos on it I love you so much homie

i think you made everything for this episode!

One of my new favorites

That pole saw you made was pretty legit man lol nice work Andy

Wait but what about that one way valve that you made on the sides? You need active breathing for it to work, no? It closes off only on suction and opens on breathing out - so blocking path (well not fully but still) for outside air to get inside. On video it seems as if you just let it be - so it should be open.

i was waiting for a video like this

Best part about dr stone is a lot of the science they use would pretty much work irl (with the exception of small fictional deviations, such as foxtail millet actually being able to be made into a noodle that doesn't crumble instantly)

Season 3! Let's goooooooo

Im pretty zonked right now. This is fun!

there is an old Danish book on medieval tech and one of the projects in it is an air tight diving suit with a breathing apparatus. maybe fallow what you can in the book if your interested in improving this design

That was Awesome!!!

This is very... Exhilarating!

I give this guy my respect for showing the anime scenes in sub

Great job guys! Dr. Stone is the Tony Stark of his time

Should of used some small bamboo rings to line the inside of the tube to make it easier to breathe. Don't need to be glued or anything just stacked up on top of each other and boom, flexible reinforcement. If you want to go fancy then use some green willow branches and weave a loose tube net.

Legendary channel.

the way he said “manga” 1:58 just killed me

Preface, I’m not a blacksmith, just an enthusiast, but the fact that you are still blacksmithing on a rock kills me. So my suggestion is, can you make an anvil out of iron or bronze what works better than a rock. It doesn’t have to look like an anvil as we know them it could be a cylinder no bigger in diameter then the bottom of a solo cup and slammed into a log to keep it from moving so much. Just wanted to chip in. This will probably get buried.

I liked how he had this channel first set up

Would be worth a revisit this should definitely have worked as this is how we made Great War era gasmasks and they worked .

You definitely need to reinforce the intake tube. Coiled wire can increase air flow.

I haven't watched this channel since 2019 well now I'm back

FINALLY GOT THAT SPONSORSHIP LETS GOOO

You should make a pump for ur next video, which could help u in developing knowledge on how to make a piston.

For the chlorine it might have been more effective if you had used wet fabric in the filter like they did in WWI or wet limestone pices to neutralize it.

Man. I cannot wait for dr stone s3. He said go to another continent. As a geography nerd I cannot wait a second

the vibe keeps getting closer and closer to mythbusters tbh, which is great. Y'all dont quiiiiite have the same funding yet but definitely the same spirit!

I actually wonder if there would be a way to help seal the tubing using some sort of resin or tar as a layer around the outside.

Great video. Did i miss the video were you unlocked the file to cut the teeth into the saw?

How to make your own ac house filters? Where do you get that material at that they use? If you use anything else than what they use would it catch fire?

in the show they say them selves that it does not work if you breathe too quickly, if the pump is drawing too much air, the filter does not have time to do its job. thats also why you dont smell anything i bet, because you are drawing in less air than the pump was. you should try the gas test again but the pump going 10% of max draw speed or slower, the goal is to go slow breathing speed.

good works👍

glad I'm finally watching this non ironic asking the real questions

Maybe would have been a good idea to have a second tub to put the mask in, so the filter is in the tub with the gas, but the mask being measured is in the other fresh one. That would have sorted out if it was the mask no working, or just improperly fit.

Would flint be a better cutting tool for leather?

I feel like I'm tripping. This crossover is too perfect.

Do more Dr Stone. Great stuff.

Gas mask: a full face respirator with style filter. Half face respirator: What they made in this video.

Charcoal has a number of useful benefits from basic gunpowder, water/air filters, to fuel for fire.

where do you get all the bamboo?

you can put segments of bamboo inside the leather tube, it might be that the lack of air circulation inside the collapsed leather tube is creating a vacuum inside the mask itself and the as you said the plastic of the mannequin is letting the chlorine gas penetrate

This guy understands how cool dr stone is

This is dedication to the cosplay

now we just need a WW1 era machinegun

I would like to see a test with modern activated charcoal.

Ooooh now I wanna see this