Model compatibility ledger

Levoit Core 400S replacement filter

Use this model page to match the purifier body label to the OEM filter SKU, compatible alternatives, sizing notes, and retailer listings before ordering.

OEM filter SKU

Core 400S-RF

Replacement interval

Every 8 months

Annual filter estimate

$60-$120

OEM filter first

Levoit Core 400S Replacement Filter

Larger Core smart purifier family.

Model numbers: Core 400S, Core400S-RF
Aliases: Core 400S Smart True HEPA
Dimensions: Cylindrical cartridge sized for Core 400S.

Last reviewed 2026-05-29. Match both purifier model and filter SKU because retailers often group similar cartridges together.

OEM and compatible filter comparison

OEM entries are shown first. Compatible alternatives are not manufacturer-approved unless marked OEM.

Check	OEM filter	Compatible option
Manufacturer-recommended filter	Core 400S-RF · Levoit Core 400S Replacement Filter	Core 400S-RF · Levoit Core 400S Replacement Filter Cylindrical cartridge sized for Core 400S. Annual estimate: $60-$120.

Retailer options for Core 400S-RF

Amazon

Levoit Core 400S-RF replacement filter

Varies by listing

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Price note: Check retailer listing for current price.
Availability note: Use the SKU and model notes here to confirm fit before checkout.
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Check retailer listing

Verify the purifier model and filter SKU on the retailer page before ordering.

Walmart