Air Purifiers by Room Size
A bedroom compact, a value-king medium, or a great-room monster? Every class here is sized by honest AHAM coverage — not the marketing claims — so start with your actual room, then compare the best picks in each — tradeoffs included.
Large Room
21 modelsLiving rooms and modest open plans — where premium pricing argues hardest and per-CFM math matters most.
Medium Room
12 modelsThe value sweet spot: the Coway Mighty / Winix 5500-2 class, 3-4x the CADR-per-dollar of design flagships.
Small Room
6 modelsBedrooms, offices, nurseries — where $60-100 machines genuinely suffice and sub-25 dB sleep modes matter more than capacity.
Extra-Large
5 modelsGreat rooms and lofts: big fans in big boxes. Run the two-unit math before buying one flagship.