Blueair Blue Signature moves more air (CADR) and covers a larger room than Levoit Core 300S.
Which purifier has higher CADR?
Blueair Blue Signature has higher CADR (455 vs 141 CFM).
Which purifier is quieter?
Blueair Blue Signature is quieter (23 vs 24 dB).
Which purifier covers a larger room?
Blueair Blue Signature fits a larger room (about 705 vs 219 sq ft recommended from CADR).
Which purifier has better smart features?
Both list smart features (None vs app, Alexa, Google Assistant).
Which purifier has longer filter life?
Blueair Blue Signature lists a replacement interval of 179.99; Levoit Core 300S does not.
Bottom line
Blueair Blue Signature moves more air (CADR) and covers a larger room than Levoit Core 300S.
| Metric | Blueair Blue Signature | Levoit Core 300S |
|---|---|---|
| CADR (smoke) | 455 CFM | 141 CFM |
| Recommended room size | 705 sq ft | 219 sq ft |
| Claimed coverage | 3385 sq ft | — |
| Noise | 23 dB | 24 dB |
| Filter type | HEPASilent | True HEPA |
| Filter interval | 179.99 | — |
| Smart features | None | app, Alexa, Google Assistant |