Blueair Pure 211+ vs Coway Airmega 350
A spec-only comparison using ENERGY STAR certification data. We have not tested either unit, and features like noise, filter price and build quality are not covered here.
- Cleaning speed: the Coway Airmega 350 has the higher smoke CADR (360 vs 348 cfm, 3% more).
- Running cost: the Coway Airmega 350 uses less electricity per ENERGY STAR (344 kWh/yr), about $1.10/yr less at the U.S. average rate (estimate).
- Room size: by AHAM's 2/3 rule, up to about 522 sq ft vs 540 sq ft.
Both sit in ENERGY STAR data as Large rooms (250–349 cfm) / Extra-large rooms (350+ cfm) units by smoke CADR. Listed differences: only the Coway Airmega 350 lists an air-quality-sensor auto mode; reported ozone is 5 ppb vs 0 ppb. Over 5 years at the U.S. average rate, the electricity difference is about $5.49 (estimate).
| Blueair Pure 211+ | Coway Airmega 350 | |
|---|---|---|
| Smoke CADR (cfm) | 348 | 360 |
| Dust CADR (cfm) | 347 | 378 |
| Pollen CADR (cfm) | 348 | 450 |
| ENERGY STAR room size | 539 sq ft | 558 sq ft |
| AHAM 2/3-rule room size | 522 sq ft | 540 sq ft |
| Annual energy | 350 kWh | 344 kWh |
| Est. electricity/yr (U.S. avg) | $64.08 | $62.99 |
| Smoke CADR per watt | 5.81 | 6.12 |
| Ozone (reported) | 5 ppb | 0 ppb |
| Technology | Ion Generator,Fan and Filter | Fan and Filter |
| Filters listed | HEPA-Type | HEPA-Type |
| Auto mode | None | Air Quality Sensor |
| Connected | No | No |
| Most Efficient | No | No |
| Source | ENERGY STAR record 4510118 | ENERGY STAR record 4005920 |
Purchase price and filter cost are not included (data gap). Electricity estimates use 18.31¢/kWh (EIA).
Open this pair in the compare tool
See Blueair air purifiers on the manufacturer's site (plain link, not an affiliate link)
See Coway air purifiers on the manufacturer's site (plain link, not an affiliate link)