i heard alot of people complain about the noise on the levoit 600s, is that true?

Please make a review of the Levoit Everest Air and compare it against the Core 600s, thank you!

I have the Blueair 121, the larger brother to the 211+, according to the paperwork it covers well over 600 square feet, but never seen it tested on your site, curious about your thoughts on the 121.

Would love to see 1) how well they clean up the air 2) cost of filters for these air purifiers 3) air flow Coway AP-1512HH Mighty Medify MA-112 Nuwave oxypure Shark purifiers HP302 vs HC502 Winix 5500-2 Kenmore PM1005 LEVOIT Core 300 , Core 600S

Hi! Mind if I asked have u heard about Clair air purifier (from Korean brand)? Its stated that they are using ‘e2f’ filters and it can capture small particles better that HEPA filters. What do you think about this? Is it really better than HEPA? Already google to read more about e2f but couldnt find much info.

Great channel.

I think it would be more useful if u test to show how fast it drops pm2.5 to 0 or eg 5 instead of showing how much it improves air in an hour; anyway I suppose these tests may be largely imprecise because u use Temptop sensor

Great channel.