FreAire B0HBJ3N8BD moves more air (CADR) and covers a larger room than ECOSELF HAP609 knq3pp.
Which purifier has higher CADR?
FreAire B0HBJ3N8BD has published CADR; ECOSELF HAP609 knq3pp does not.
Which purifier is quieter?
ECOSELF HAP609 knq3pp is quieter (20 vs 22 dB).
Which purifier covers a larger room?
FreAire B0HBJ3N8BD is recommended for about 866 sq ft based on CADR.
Which purifier has better smart features?
Both list smart features (None vs None).
Which purifier has longer filter life?
ECOSELF HAP609 knq3pp lists Every 6–8 months; FreAire B0HBJ3N8BD lists 19 months. 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 ECOSELF HAP609 knq3pp.
| Metric | ECOSELF HAP609 knq3pp | FreAire B0HBJ3N8BD |
|---|---|---|
| CADR (smoke) | — | 559 CFM |
| Recommended room size | — | 866 sq ft |
| Claimed coverage | 1800 sq ft | 2390 sq ft |
| Noise | 20 dB | 22 dB |
| Filter type | HEPA (H13) | HEPA |
| Filter interval | Every 6–8 months | 19 months |
| Smart features | None | None |