FreAire B0HBJ3N8BD moves more air (CADR) and covers a larger room than Blueair Blue Pure 211i Max.
Which purifier has higher CADR?
FreAire B0HBJ3N8BD has higher CADR (559 vs 435 CFM).
Which purifier is quieter?
FreAire B0HBJ3N8BD is quieter (22 vs 23 dB).
Which purifier covers a larger room?
FreAire B0HBJ3N8BD fits a larger room (about 866 vs 674 sq ft recommended from CADR).
Which purifier has better smart features?
Both list smart features (None vs None).
Which purifier has longer filter life?
FreAire B0HBJ3N8BD lists a replacement interval of 19 months; Blueair Blue Pure 211i Max does not.
Bottom line
FreAire B0HBJ3N8BD moves more air (CADR) and covers a larger room than Blueair Blue Pure 211i Max.
| Metric | FreAire B0HBJ3N8BD | Blueair Blue Pure 211i Max |
|---|---|---|
| CADR (smoke) | 559 CFM | 435 CFM |
| Recommended room size | 866 sq ft | 674 sq ft |
| Claimed coverage | 2390 sq ft | 3235 sq ft |
| Noise | 22 dB | 23 dB |
| Filter type | HEPA | HEPASilent |
| Filter interval | 19 months | — |
| Smart features | None | None |