Our verdict
Pick the Levoit Core 300-P if you want the lower price. Pick the Levoit Core 300S-P if it will run in a bedroom.
The central trade-off
Quietest setting. Levoit Core 300S-P Smart Air Purifier: 22 dB; Levoit Core 300-P Air Purifier: 24 dB.
Power draw. Levoit Core 300-P Air Purifier states 56 watts; the other's maker page doesn't.
Price. When we checked, the Levoit Core 300-P Air Purifier listed for less ($100 against $150); prices move, so check both buttons.
Side by side
| Specification | Levoit Core 300-P Air Purifier | Levoit Core 300S-P Smart Air Purifier |
|---|---|---|
| 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 | 22 dB |
| Noise | 24 dB | Not stated by the maker |
| Power draw | 56 watts | Not stated by the maker |
| Filters | Not stated by the maker | Not stated by the maker |
| Warranty | 2 years | 2 years |
Values are the makers' published specifications. "Not stated" means the maker doesn't publish it.