Wellness
Air purifiers
Bedroom-friendly HEPA purifiers, compared on room coverage, noise and price.
CADR tells you how fast a unit clears a room, and the coverage figure assumes a specific ceiling height, so size up if your bedroom is larger or taller than the rating. Every one of these runs on consumable HEPA filters, so add the replacement cost and change interval to the sticker price. For a bedroom, the noise level on the lowest setting matters more than the maximum output.
What air purifiers cost right now
We track 3 products here across 5 offers from 5 retailers. Every figure below comes from a price we opened and checked ourselves, between Aug 26, 2026 and Oct 11, 2026.
- Typical
- $149.99
- Most expensive
- $169.99
The middle of the 3 best prices on this page
Top of the range we currently track
Where stores disagree today
Same product, different shelf, different price. These are the gaps we found on the dates shown, and they are the whole reason to check before buying.
- Coway Airmega AP-1512HH (Mighty): $169.99 at Amazon against $239.99 at Coway (Cowaymega). $70 apart, checked Aug 26, 2026.
All 3 products we track, cheapest first
Blueair Blue Pure 511i Max
A small, whisper-quiet smart purifier built for bedrooms and nurseries.
Levoit Core 300S
A compact, quiet HEPA purifier built for small to medium bedrooms.
Coway Airmega AP-1512HH (Mighty)
A veteran HEPA purifier with strong CADR numbers, sized for bedrooms and home offices.
What actually differs
The specs that vary across the air purifiers we track. Sorted cheapest first, so you can see what the extra money is buying rather than guessing.
| Product | Best price | Dimensions | Filtration | Noise Level | Room Coverage | CADR | Smart Features |
|---|---|---|---|---|---|---|---|
| Blueair Blue Pure 511i Max | $139.99 | 14.5 x 9.3 x 9.3 in, 4.9 lb | HEPASilent: washable pre-filter + particle/carbon filter | 19 dB on low, up to 48 dB on high | 237 sq ft in 12.5 min, up to 1,138 sq ft in 1 hr | 125 (smoke, dust, pollen) | Blueair app, Wi-Fi, Alexa, Welcome Home geofencing, Clean Air ETA |
| Levoit Core 300S | $149.99 | 8.7 x 8.7 x 14.2 in | 3-stage: pre-filter, H13 True HEPA, activated carbon | 22-50 dB | 219 sq ft at 4.8 ACH / up to 1,051 sq ft at 1 ACH | 141 CFM (240 m3/h) | — |
| Coway Airmega AP-1512HH (Mighty) | $169.99 | 16.8 x 9.6 x 18.3 in | Pre-filter, deodorization filter, True HEPA, optional ionizer | 24-53 dB(A) | 361 sq ft at 4.8 ACH / up to 1,748 sq ft at 1 ACH | — | Auto and Eco mode, air quality indicator light, filter change alert |