Airmega 400S

If you have high concentrations of particulates (e.g., pollen or smoke particles) and VOCs (which are gases), you need two types of air purifier. This is because most purifiers have very little activated carbon or other sorbent media by weight for gases/vapors/odors/VOCs. Instead, they're designed f

Hi, I created the newest iteration of the Buying Guide. I didn't include the Coway Airmega 300 because in the past, the Coway Airmega 400 would be discounted frequently enough to justify its purchase instead. Annoyingly, there were no good Black Friday or Christmas sales for the Airmega 400 or Airme

Do you know the dimensions of the basement? A room's length x width x height are used to size purifiers. The largest room size the Coway Airmega 400 should be 492 sq. ft. with an 8 ft. ceiling. This is based on the AHAM 2/3 rule and the Airmega 400's Smoke CADR of 328 CFM running on the highest airf

So the second screen capture is the Coway Airmega 400S. The Airmega 400S is the app connected version of the Airmega 400. The Airmega 450: Has higher Clean Air Delivery Rates (CADRs) than the 400/400S Is louder on high (57.7 dBA) than the 400/400S (52 dBA) Uses more energy at 72 W vs. the 400/400S p

Purifiers aren't good at reducing visible dust and pet hair. Both are large and heavy compared to "invisible" pollutants like PM10, PM2.5, and PM0.1. AHAM's 2/3 rule recommends CADRs be at least 2/3 of your room's area (assuming an 8 ft. ceiling). However, people with allergies or asthma should aim