Blueair Blue Pure 211i Max moves more air (CADR) and covers a larger room than PuroAir 240.
Which purifier has higher CADR?
Blueair Blue Pure 211i Max has published CADR; PuroAir 240 does not.
Which purifier is quieter?
Blueair Blue Pure 211i Max is quieter (23 vs 24 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?
Blueair Blue Pure 211i Max lists Wi-Fi or app control; PuroAir 240 does not.
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 PuroAir 240.
| Metric | Blueair Blue Pure 211i Max | PuroAir 240 |
|---|---|---|
| CADR (smoke) | 435 CFM | — |
| Recommended room size | 674 sq ft | — |
| Claimed coverage | 3235 sq ft | — |
| Noise | 23 dB | 24 dB |
| Filter type | HEPASilent | HEPA |
| Filter interval | — | — |
| Smart features | None | None |