1. Coway Airmega AP-1512HH Mighty · 2. Blueair Blue Pure 211i Max · 3. DIY box-fan filter (Corsi-Rosenthal box) · +7
Ranked for the weeks every summer when the AQHI hits 10+: smoke CADR (the certified clean-air delivery rate for smoke particles) per dollar, noise at a speed you can sleep through, filter cost per year, and whether the unit is sold by Canadian retailers. Smoke CADR is quoted only where we could confirm it from the maker; otherwise read the AHAM label on the box. A purifier helps indoor air; it does not replace health-authority advice on smoke.
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