Blueair - Blue Pure 311i+ Max vs Coway - Airmega 200M
Between the Blue Pure 311i+ Max and Airmega 200M, the Blue Pure 311i+ Max comes out ahead in cadr / coverage, while the Airmega 200M wins on several specs. Overall, the Blue Pure 311i+ Max scores 61.3 and the Airmega 200M scores 56.3 on our Mars Score.
Which should you buy?
The Blue Pure 311i+ Max edges ahead on the Mars Score (61.3 vs 56.3), but the 5.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Blue Pure 311i+ Max if you care most about cadr / coverage. The biggest gaps in its favor are cadr, coverage, min noise.
The Airmega 200M similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable true hepa h13+, activated carbon, so those specs do not separate the two — focus on the differences below.
Bottom line: the Blue Pure 311i+ Max is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Blueair - Blue Pure 311i+ Max wins
- ▲CADR — 25.00% more. 500 m³/h vs 400 m³/h.
- ▲Coverage — 6.06% more. 35 m² vs 33 m².
- ▲Min noise — 2.00 dB less. 23 vs 25.
Why Coway - Airmega 200M wins
- No decisive advantages.
Spec comparison
Performance
| Spec | Blueair - Blue Pure 311i+ Max | Coway - Airmega 200M |
|---|---|---|
| CADR | 500 m³/hlead | 400 m³/h |
| Coverage | 35 m²lead | 33 m² |
| True HEPA H13+ | true | true |
| Activated carbon | true | true |
Smart & Noise
| Spec | Blueair - Blue Pure 311i+ Max | Coway - Airmega 200M |
|---|---|---|
| Min noise | 23 dBlead | 25 dB |
| Air quality sensor | true | true |
| Smart app | truelead | false |
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.