The Best Air Purifier
A proven, quiet HEPA workhorse that cleans a medium room well without draining your wallet on filters. · Updated June 24, 2026
Coway Airmega Mighty2
Coway Airmega Mighty2 (AP-1512N)
$270Buy on Amazon
★star.shop pickWirecutter pickReddit favorite
Pros
- Strong, consistent CADR that cleans rooms up to ~360 sq ft effectively
- Genuinely quiet on lower fan speeds, including a near-silent sleep mode
- Auto mode with a built-in air-quality sensor adjusts fan speed on its own
- Widely available, reasonably priced replacement filters keep running costs low
- More energy efficient and quieter than the previous AP-1512HH it replaces
- Compact, unobtrusive design that blends into most rooms
Cons
- Filters still need replacing roughly yearly — not a true buy-it-for-life filter lifespan
- r/BuyItForLife users tend to favor IQAir or Austin Air for multi-year filters and longer-term durability
- $270 is a fair bit more than budget purifiers, even if running costs are low
- No app or smart-home connectivity, which some buyers expect at this price
- Plastic construction feels practical rather than premium