BLUEAIR Blue Pure 311i Max moves more air (CADR) and covers a larger room than PuroAir 240.
Which purifier has higher CADR?
BLUEAIR Blue Pure 311i Max has published CADR; PuroAir 240 does not.
Which purifier is quieter?
BLUEAIR Blue Pure 311i Max is quieter (23 vs 24 dB).
Which purifier covers a larger room?
BLUEAIR Blue Pure 311i Max is recommended for about 566 sq ft based on CADR.
Which purifier has better smart features?
BLUEAIR Blue Pure 311i Max lists Wi-Fi or app control; PuroAir 240 does not.
Which purifier has longer filter life?
BLUEAIR Blue Pure 311i Max lists a replacement interval of 9 months; PuroAir 240 does not.
Bottom line
BLUEAIR Blue Pure 311i Max moves more air (CADR) and covers a larger room than PuroAir 240.
| Metric | BLUEAIR Blue Pure 311i Max | PuroAir 240 |
|---|---|---|
| CADR (smoke) | 365 CFM | — |
| Recommended room size | 566 sq ft | — |
| Claimed coverage | 2107 sq ft | — |
| Noise | 23 dB | 24 dB |
| Filter type | HEPASilent | HEPA |
| Filter interval | 9 months | — |
| Smart features | None | None |