Dreame AirPursue PM20 moves more air (CADR) and covers a larger room than BLUEAIR Blue Signature Small.
Which purifier has higher CADR?
Dreame AirPursue PM20 has higher CADR (400 vs 160 CFM).
Which purifier is quieter?
BLUEAIR Blue Signature Small is quieter (50 vs 60 dB).
Which purifier covers a larger room?
Dreame AirPursue PM20 fits a larger room (about 620 vs 248 sq ft recommended from CADR).
Which purifier has better smart features?
BLUEAIR Blue Signature Small lists Wi-Fi or app control; Dreame AirPursue PM20 does not.
Which purifier has longer filter life?
Filter replacement interval is not published for either model.
Bottom line
Dreame AirPursue PM20 moves more air (CADR) and covers a larger room than BLUEAIR Blue Signature Small.
| Metric | Dreame AirPursue PM20 | BLUEAIR Blue Signature Small |
|---|---|---|
| CADR (smoke) | 400 CFM | 160 CFM |
| Recommended room size | 620 sq ft | 248 sq ft |
| Claimed coverage | 7534 sq ft | 248 sq ft |
| Noise | 60 dB | 50 dB |
| Filter type | HEPA-13, carbon, NANO filter, charcoal filter, photocatalyst UV lamp | HEPASilent |
| Filter interval | — | — |
| Smart features | None | None |
Related comparisons
- FreAire B0HBJ3N8BD vs Dreame AirPursue PM20
- FreAire B0HBJ3N8BD vs BLUEAIR Blue Signature Small
- Blueair Blue Signature vs Dreame AirPursue PM20
- Blueair Blue Signature vs BLUEAIR Blue Signature Small
- Blueair Blue Pure 211i Max vs Dreame AirPursue PM20
- Blueair Blue Pure 211i Max vs BLUEAIR Blue Signature Small