Dreame AirPursue PM20 moves more air (CADR) and covers a larger room than WESTHEY AP02.
Which purifier has higher CADR?
Dreame AirPursue PM20 has published CADR; WESTHEY AP02 does not.
Which purifier is quieter?
WESTHEY AP02 is quieter (15 vs 60 dB).
Which purifier covers a larger room?
Dreame AirPursue PM20 is recommended for about 620 sq ft based on CADR.
Which purifier has better smart features?
Neither lists Wi-Fi or app control in our sources.
Which purifier has longer filter life?
WESTHEY AP02 lists a replacement interval of every 3-6 months; Dreame AirPursue PM20 does not.
Bottom line
Dreame AirPursue PM20 moves more air (CADR) and covers a larger room than WESTHEY AP02.
| Metric | Dreame AirPursue PM20 | WESTHEY AP02 |
|---|---|---|
| CADR (smoke) | 400 CFM | — |
| Recommended room size | 620 sq ft | — |
| Claimed coverage | 7534 sq ft | 1650 sq ft |
| Noise | 60 dB | 15 dB |
| Filter type | HEPA-13, carbon, NANO filter, charcoal filter, photocatalyst UV lamp | H13 HEPA |
| Filter interval | — | every 3-6 months |
| Smart features | None | None |