Replacement filter · medium-room air purifier
Levoit Core 300S: replacement cartridge
Here is the exact cartridge the Levoit Core 300S takes, its current price, how often to replace it, and what that works out to - $45/yr on our engine's math, not a guess.
What it costs to keep running
- Annual filter cost
- $45/yr
- 5-year total
- $375
This is the same figure our scoring engine uses on the Levoit Core 300S scorecard, computed from each filter's price and yearly replacement count. Prices last checked 2026-06-01.
The cartridge it takes
Core 300-RF 3-Stage Replacement Filter
$29.99- Replace
- 1.5x per year
- Price checked
- 2026-06-01
Generic and third-party cartridges fit this model, so you are not locked into the brand part. The reorder link searches the exact part string, which surfaces both the OEM cartridge and compatible equivalents.
Reorder links are Amazon affiliate links: FilterScored earns a commission at no extra cost to you. Affiliate relationships never influence a score, which is computed by an engine from published specs and verified certifications.
Prices and part numbers are the ones we last verified from the manufacturer or a retailer listing on the dates shown; check the current price at the link before reordering. The annual figure is our engine's computation from that data, not a statement of what you will pay.
Stay in the loop
From FilterScored
Updates from FilterScored, when there is something worth sharing.