The benchmark
Coway AP-1512HH Mighty
The default recommendation in this category for a decade — true HEPA, quiet, frugal on power, filters that don't cost a fortune. Right-sized for bedrooms and offices to ~35 m².
Gear guide · Air · updated October 2, 2026
Air purifiers (HEPA)
A properly sized true-HEPA purifier is the fastest air-quality win money can buy: it strips wildfire-smoke particles, renovation dust, and allergens from the room you actually live in. It treats symptoms, not causes — mould needs its moisture source fixed and radon needs mitigation — but on a smoke day or mid-renovation, nothing else works as fast.
Not sure this category applies to your home? The 30-second screener flags it if so, and the mold & indoor air guide covers the testing side.
The smoke & odour value
Winix 5500-2
True HEPA plus a real washable carbon filter — the combination that handles wildfire-smoke smell, not just the particles. Regularly the best value per unit of clean air delivered.
The big-room unit
Levoit Core 600S
Moves enough air for open-plan main floors and basements (~70 m²) with app control and an onboard particle sensor for auto mode.
Before you buy
- Size by the room: aim for a unit rated well above your room's area so it cleans on its quiet speeds — an undersized purifier on max is a loud purifier that loses.
- "True HEPA" is the phrase that matters; "HEPA-type" filters are not the same thing.
- The real cost is filters — price a year of replacements before choosing, and stock a spare set before smoke season.
- During renovations in pre-1990 homes, a purifier is a supplement to containment and HEPA vacuuming, never a substitute — see the lead and asbestos guides.
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Measure, then act
Gear works best inside a plan: the planner reads your home's era, heating, and symptoms, flags the tests that matter, and puts the right categories on your list.
Also in gear guides: Radon monitors & test kits · Indoor air quality monitors · Carbon monoxide alarms