Blueair Blue Pure 211i Max
$349.00
Price checked 2026-08-24
Buy link unavailable
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Blueair Blue Pure 211i Max vs Coway Airmega 400
Side-by-side spec diff. Differing values highlighted; identical values dimmed. CADR and ozone rows only carry dual-sourced values. Prices as of 2026-08-24.
| Spec | Blueair Blue Pure 211i Max | Coway Airmega 400 |
|---|---|---|
| Price | $349.00 | $388.99 |
| Availability | In Stock | In Stock |
| CADR ✓₂ | 435 smoke, 452 dust, 450 pollen cfm ✓₂ | 328 smoke, 328 dust, 400 pollen cfm ✓₂ |
| Room size | 635 ft² @4.8 ACH · 3000 ft² @1 ACH | 1560 ft² AHAM · 3120 ft² @1 ACH |
| Filter type | HEPASilent | True HEPA |
| Filter stages | pre_washable_fabric, particle_carbon | pre_washable, max2_combined_carbon_hepa |
| Noise | 23–53 dB | 22–52 dB |
| Ozone status ✓₂ | CARB-certified (Electronic) — list entry Blue Pure 211i Max (Blueair AB), model code 3613111100, certified 2023-04-19, approval G-23-076; Blueair's product page makes no additional ozone statement. | CARB-certified (Mechanical) — list entry Airmega 400(G)/(W), model AP-2015F, certified 2026-01-13, approval G-26-006; Coway's product page makes no additional ozone statement. |
| App / ecosystem | blueair_app, alexa, google | no_app |
| Sensors | PM2.5/air-quality + VOC | PM2.5/air-quality |
| Auto mode | Yes | Yes |
| Humidifier combo | No | No |
Coway Airmega 400
$388.99
Price checked 2026-08-24
Buy link unavailable
Fail-closed pending verified Associates tag.
Independent comparison. Prices are point-in-time scrapes from Amazon.com listings, not offers. CADR figures render only where two independent sources agree; ozone status is checked against the California Air Resources Board certified-device list. No health claims beyond manufacturer documentation.