FreAire B0HBJ3N8BD moves more air (CADR) and covers a larger room than BLUEAIR Blue Pure 511i Max.
Which purifier has higher CADR?
FreAire B0HBJ3N8BD has higher CADR (559 vs 174 CFM).
Which purifier is quieter?
BLUEAIR Blue Pure 511i Max is quieter (19 vs 22 dB).
Which purifier covers a larger room?
FreAire B0HBJ3N8BD fits a larger room (about 866 vs 270 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 19 months; BLUEAIR Blue Pure 511i Max lists 9. Intervals are as published and are not converted to a single unit.
Bottom line
FreAire B0HBJ3N8BD moves more air (CADR) and covers a larger room than BLUEAIR Blue Pure 511i Max.
| Metric | FreAire B0HBJ3N8BD | BLUEAIR Blue Pure 511i Max |
|---|---|---|
| CADR (smoke) | 559 CFM | 174 CFM |
| Recommended room size | 866 sq ft | 270 sq ft |
| Claimed coverage | 2390 sq ft | 465 sq ft |
| Noise | 22 dB | 19 dB |
| Filter type | HEPA | HEPASilent |
| Filter interval | 19 months | 9 |
| Smart features | None | None |