Airmega 350

Most brands overstate coverage ratings. If you see a large figure (e.g., 1,500 - 3,000+ sq. ft.), this is likely at 1 to 2 Air Changes per Hour (ACH) which is too low. In any case, Clean Air Delivery Rates (CADRs) are the better metric. The Coway Airmega 400 has a top Smoke CADR of 328 CFM. Based on

For the Coway 350, you would still need 2 for the main rolm and 1 for the bedroom. You cannot base it off of the advertise sq ft coverage. If your ceilings are 8 ft, you would need about 467 CADR for the main room and 200 CADR for the bedroom to get 4.8 ACH. The Coway 350 advertises average about “3

Levoit will still clean your air. They even publish PM2.5 CADRs for most of their models. While the Levoit Vital series and EverestAir perform very well, they may not have the build quality of the more premium Coway units. Is it better to slightly oversize units so they’re effective on medium/quiet

Family room and Sunroom id do the Coway Airmega 350/450. Winix 5510 or Coway Airmega ap-1512hh for smaller rooms.

Well it depends what setting is she running it on, how far away is it, how is it angled ? Etc. As I have a box fan next to a Levoit 300 I am looking at now. Apparently box fans can be 45-65+ decibels depending on low/medium/high The Levoit 300 got 64 decibels in a comparison test in the video below.

Blue air has (safe/low levels) of ozone but you can never toggle it off on thier units. Winix usually has an ionizer that can be toggled on/off, although I think it reverts back to "on" every time you turn it on/off. Coway some have ionizers, but make sure that it either doesn't or can toggle on/off

I’d say levoit 600s and then a vital 200s for your bedroom is a pretty good setup. Depending on air quality filters can last 12 months or sometimes even longer. Just make sure to clean the pre filters regularly. On the vital it’s a separate mesh on the core 600s default filter it’s built in and desi