Choose Alen 45i for lower noise and Wi-Fi or app control.
Which purifier has higher CADR?
The Alen 45i has a smoke CADR of 255 CFM versus 246 CFM for the Coway Airmega 200M, a difference of 4%.
Which purifier is quieter?
Alen 45i is quieter (23 vs 24 dB).
Which purifier covers a larger room?
Alen 45i fits a larger room (about 395 vs 381 sq ft recommended from CADR).
Which purifier has better smart features?
Alen 45i lists Wi-Fi or app control; Coway Airmega 200M does not.
Which purifier has better filtration?
Alen 45i lists HEPA; Coway Airmega 200M lists Green True HEPA.
Bottom line
Choose Alen 45i for lower noise and Wi-Fi or app control.
| Metric | Alen 45i | Coway Airmega 200M | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 255 CFM | 246 CFM | Alen 45i (+4%) |
| Recommended room size | 395 sq ft | 381 sq ft | Alen 45i (+4%) |
| Manufacturer claimed coverage | 1900 sq ft | — | — |
| Minimum noise | 23 dB | 24 dB | Alen 45i |
| Filter type | HEPA | Green True HEPA | — |
| Wi-Fi / app | Yes | No | — |
| Weight | 14 lb | — | — |