Our verdict
Pick the Levoit Core 400S-P if it will run in a bedroom. Pick the Levoit Core 200S-P if you want the lower price.
The central trade-off
Smoke CADR. Levoit Core 400S-P Smart Air Purifier states 231 CFM; the other's maker page doesn't.
Quietest setting. Levoit Core 400S-P Smart Air Purifier: 24 dB; Levoit Core 200S-P Smart Air Purifier: 27 dB.
Price. When we checked, the Levoit Core 200S-P Smart Air Purifier listed for less ($90 against $220); prices move, so check both buttons.
Side by side
| Specification | Levoit Core 400S-P Smart Air Purifier | Levoit Core 200S-P Smart Air Purifier |
|---|---|---|
| Rated room size | Not stated by the maker | Not stated by the maker |
| Smoke CADR | 231 CFM | Not stated by the maker |
| CADR | Not stated by the maker | Not stated by the maker |
| Quietest setting | 24 dB | 27 dB |
| Noise | 24 dB | Not stated by the maker |
| Power draw | Not stated by the maker | 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.