Our verdict
Pick the Levoit Core 300-P if you want the lower price. Pick the Coway Airmega 100 if running cost matters.
The central trade-off
Quietest setting. Levoit Core 300-P Air Purifier states 24 dB; the other's maker page doesn't.
Power draw. Coway Airmega 100: 25 W; Levoit Core 300-P Air Purifier: 56 watts.
Filters. Coway Airmega 100: HEPA.
Price. When we checked, the Levoit Core 300-P Air Purifier listed for less ($100 against $130); prices move, so check both buttons.
Side by side
| Specification | Levoit Core 300-P Air Purifier | Coway Airmega 100 |
|---|---|---|
| Rated room size | Not stated by the maker | Not stated by the maker |
| Smoke CADR | Not stated by the maker | Not stated by the maker |
| CADR | Not stated by the maker | Not stated by the maker |
| Quietest setting | 24 dB | Not stated by the maker |
| Noise | 24 dB | 20 dB |
| Power draw | 56 watts | 25 W |
| Filters | Not stated by the maker | HEPA |
| Warranty | 2 years | Not stated by the maker |
Values are the makers' published specifications. "Not stated" means the maker doesn't publish it.