Levoit air purifier
Levoit Core 400 / Core 400S replacement filter
BuckParts checks retailer listings against your exact part. BuckParts is not the seller.
The filter for your Core 400 / Core 400S
Core 400 / Core 400S replacement filter
Core 400S-RF
Look for Core 400S-RF or Core 400S on the filter packaging.
This is the genuine Levoit filter made for the Core 400 and Core 400S family.
See where to buy
Open the official Levoit replacement-filter page BuckParts checked for this cartridge.
No BuckParts Verified Link yet for this filter number. We haven’t found a retailer product page we’re comfortable showing.
Opens the checked Levoit product page.
Is this your purifier?
If your label says Core 400 or Core 400S, you're in the right place.
Other Levoit Core families — Core 200, Core 300, and Core 600 — use different filters. If your unit is one of those, search that model instead.
I have a different modelWorks with these purifiers
These Levoit models use this replacement filter.
- Levoit Core 400-RF
- Levoit Core 400S
- Levoit Core 400S-P Smart
- Levoit Core 400S-RF
- Levoit Core 450S
- Levoit Core400S
- Levoit HEAPAPLVSUK0072A
- Levoit HEAPAPLVSUS0072B
- Levoit HEAPAPLVSUS0076
- Levoit LAP-C401S-WAAA
- Levoit LAP-C401S-WJP
- Levoit Core 400Smodel code LAP-C401S-WUSR
- Levoit Core 450Smodel code LAP-C451S-WUSR
- Levoit PlasmaPro 400S-P Smart
Why you can trust this match
- This page is for Core 400S-RF, the replacement filter shown above.
- BuckParts is not the seller.
- Buy links are checked against Levoit's official product listing. BuckParts re-checks listings periodically; a listing check is not a permanent guarantee. Most recent listing check: Jun 12, 2026.
- A buy link appears only when the retailer page passes the filter check.