Comment by cosmodisk
3 years ago
I've done so much research about air purifiers that I think I could do a thesis if I were in academia. The vast majority of these devices fall under one category: rubbish. Lots of gimmicks performed when it comes to efficacy. Bending reality with borderline claims or inventing useless terms that mean nothing. If you are serious about indoor air quality, start with IQAir. Their products are bulky, contain multiple filters and you know that you'll be able to get replacement filters 5 years later. Blueair has some reasonable products too (ignore the smaller, cheap product lines).
Most air purifiers are a high-quality filter and a fan to move air through it. That's a solid approach, and they perform close to how you'd expect given their flow rate and filter rating.
Why are IQAir products especially good?