FreAire B0HBJ3N8BD moves more air (CADR) and covers a larger room than Blueair Blue Pure 211+.
Which purifier has higher CADR?
FreAire B0HBJ3N8BD has higher CADR (559 vs 350 CFM).
Which purifier is quieter?
FreAire B0HBJ3N8BD is quieter (22 vs 31 dB).
Which purifier covers a larger room?
FreAire B0HBJ3N8BD fits a larger room (about 866 vs 543 sq ft recommended from CADR).
Which purifier has better smart features?
FreAire B0HBJ3N8BD lists Wi-Fi or app control; Blueair Blue Pure 211+ does not.
Which purifier has longer filter life?
FreAire B0HBJ3N8BD lists a replacement interval of 19 months; Blueair Blue Pure 211+ does not.
Bottom line
FreAire B0HBJ3N8BD moves more air (CADR) and covers a larger room than Blueair Blue Pure 211+.
| Metric | FreAire B0HBJ3N8BD | Blueair Blue Pure 211+ |
|---|---|---|
| CADR (smoke) | 559 CFM | 350 CFM |
| Recommended room size | 866 sq ft | 543 sq ft |
| Claimed coverage | 2390 sq ft | — |
| Noise | 22 dB | 31 dB |
| Filter type | HEPA | HEPASilent |
| Filter interval | 19 months | — |
| Smart features | None | None |