Blueair Blue Pure 211i Max moves more air (CADR) and covers a larger room than ECOSELF HAP609.
Which purifier has higher CADR?
Blueair Blue Pure 211i Max has published CADR; ECOSELF HAP609 does not.
Which purifier is quieter?
ECOSELF HAP609 is quieter (20 vs 23 dB).
Which purifier covers a larger room?
Blueair Blue Pure 211i Max is recommended for about 674 sq ft based on CADR.
Which purifier has better smart features?
Both list smart features (None vs None).
Which purifier has longer filter life?
Filter replacement interval is not published for either model.
Bottom line
Blueair Blue Pure 211i Max moves more air (CADR) and covers a larger room than ECOSELF HAP609.
| Metric | Blueair Blue Pure 211i Max | ECOSELF HAP609 |
|---|---|---|
| CADR (smoke) | 435 CFM | — |
| Recommended room size | 674 sq ft | — |
| Claimed coverage | 3235 sq ft | 1800 sq ft |
| Noise | 23 dB | 20 dB |
| Filter type | HEPASilent | 3-Stage Filter |
| Filter interval | — | — |
| Smart features | None | None |