Levoit · Core 400S
Levoit Core 400S-RF Original Filter Replacement filter for the Levoit Core 400S
Levoit's own three-stage filter for the Core 400S: pre-filter, H13 True HEPA and activated carbon.
- Fits the Core 400S
- Pre-filter, H13 HEPA, carbon
$49.99at levoit.com · Nov 2026
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Levoit Core 400S-RF Original Filter at a glance
- Fits
- Levoit Core 400S (and Core 400S-P)
- Stages
- Pre-filter, H13 True HEPA, activated carbon
- Replace
- When the filter-life reminder says, or when it looks grey
- Pack
- 1 filter
Our take
The genuine filter for the Core 400S. A fresh one brings the purifier back to its rated 231 cfm smoke CADR.
Levoit also sells pet-allergy, toxin and smoke-remover versions with more carbon; the original suits most homes.
Copies sell under the same part number. Levoit's figures are for its own filter.
Good for
- Core 400S owners
Skip it if
- You have a different Core model: each takes its own filter
How it compares
Every filter in the shop.
| Product | Best for | Price |
|---|---|---|
| Levoit Core 300-RF Original Filter | Core 300 & 300S | $29.99 |
| Levoit Core 400S-RF Original Filter (this one) | Core 400S | $49.99 |
| Levoit Core 600S-RF Original Filter | Core 600S | $59.99 |
| Levoit Vital 200S-RF Original Filter | Vital 200S | $49.99 |
| Coway AP-1512HH & 200M Filter Set | Mighty & 200M | $59.79 |
| Coway Airmega 400 Max2 Filter Set | Airmega 400 | $129.00 |
| Honeywell HRF-R3 True HEPA Filter R (3-pack) | HPA300 | $89.95 |
| Winix Filter S (1712-0096-00) | C545 | $49.99 |
Fits these purifiers
Levoit Core 400SShows PM2.5 · $189.99
Questions about the Core 400S-RF Original Filter
- Which Core 400S filter should I buy?
- The original Core 400S-RF suits most homes. Levoit's smoke-remover version adds more carbon for smoke smells; the pet-allergy one targets dander and odours.
How we judge. We haven't tested the Core 400S-RF Original Filter in a lab of our own. The figures come from independent ratings (AHAM, Energy Star, NIOSH, the ASPCA) or the maker, and the verdict is ours, from those figures. No brand pays to be listed. Last checked Nov 7, 2026.
Levoit Core 400S-RF Original Filter
$49.99 list price