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Best for
Your room needs more airflow than the Core 300S can provide.
Main advantage
A larger smart purifier with manufacturer-listed US CADR of 231 CFM.
Main drawback
Size using the same air-change target; higher throughput also means a larger unit and filter costs.
Price
Current price unavailable here.
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Model details, limitations & sources
Levoit Core 400S-P
- US source lists CADR 231CFM
- App control and filter indicator
- Model-specific replacement filters
Skip it: if the footprint or filter cost is unsuitable, or the problem actually requires moisture control or ventilation work.
No Buy If Works side-by-side test or unsupported winner is claimed. Confirm regional specifications and the delivered price before choosing.