Choose Alen 45i for Wi-Fi or app control.
Which purifier has higher CADR?
Alen 45i has published CADR; Shark NeverChange Compact Pro Air Purifier does not.
Which purifier is quieter?
Alen 45i lists a minimum of 23 dB; Shark NeverChange Compact Pro Air Purifier has no published figure.
Which purifier covers a larger room?
Alen 45i is recommended for about 395 sq ft based on CADR.
Which purifier has better smart features?
Alen 45i lists Wi-Fi or app control; Shark NeverChange Compact Pro Air Purifier does not.
Which purifier has better filtration?
Alen 45i lists HEPA; Shark NeverChange Compact Pro Air Purifier lists True HEPA Multi-Filter.
Bottom line
Choose Alen 45i for Wi-Fi or app control.
| Metric | Alen 45i | Shark NeverChange Compact Pro Air Purifier | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 255 CFM | — | — |
| Recommended room size | 395 sq ft | — | — |
| Manufacturer claimed coverage | 1900 sq ft | 250 sq ft | — |
| Minimum noise | 23 dB | — | — |
| Filter type | HEPA | True HEPA Multi-Filter | — |
| Replacement interval | — | 5 years | — |
| Power | — | 16 W | — |
| Wi-Fi / app | Yes | No | — |
| Dimensions | — | 9.21 in L × 9.21 in W × 11.61 in H in | — |
| Weight | 14 lb | 4.41 lb | — |