Choose Dreame AirPursue PM20 for higher CADR and larger-room coverage. Choose Dreo DR-HAP009 if you want lower noise and Wi-Fi or app control.
Which purifier has higher CADR?
The Dreame AirPursue PM20 has a smoke CADR of 400 CFM versus 300 CFM for the Dreo DR-HAP009, a difference of 33%.
Which purifier is quieter?
Dreo DR-HAP009 is quieter (24 vs 60 dB).
Which purifier covers a larger room?
Dreame AirPursue PM20 fits a larger room (about 620 vs 465 sq ft recommended from CADR).
Which purifier has better smart features?
Dreo DR-HAP009 lists Wi-Fi or app control; Dreame AirPursue PM20 does not.
Which purifier has better filtration?
Dreame AirPursue PM20 lists HEPA-13, carbon, NANO filter, charcoal filter, photocatalyst UV lamp; Dreo DR-HAP009 lists True HEPA H13.
Bottom line
Choose Dreame AirPursue PM20 for higher CADR and larger-room coverage. Choose Dreo DR-HAP009 if you want lower noise and Wi-Fi or app control.
| Metric | Dreame AirPursue PM20 | Dreo DR-HAP009 | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 400 CFM | 300 CFM | Dreame AirPursue PM20 (+33%) |
| Recommended room size | 620 sq ft | 465 sq ft | Dreame AirPursue PM20 (+33%) |
| Manufacturer claimed coverage | 7534 sq ft | — | — |
| Minimum noise | 60 dB | 24 dB | Dreo DR-HAP009 |
| Filter type | HEPA-13, carbon, NANO filter, charcoal filter, photocatalyst UV lamp | True HEPA H13 | — |
| Wi-Fi / app | No | Yes | — |
| Dimensions | 14.9 × 14.9 × 33.4 in | — | — |