Levoit Core 400S Replacement Filter, for Dust, Pet Allergy, Toxin, Smoke Remover

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Exclusive Replacement Filter: Officially designated replacement filter to keep your Levoit Core 400S/Core 400S-P air purifier at its best working efficiency and capacity.
Upgraded 3-in-1 Filtration: Capturing at least 99.97% of airborne particles 0.3 microns in size, such as dust, smoke, pollen, odor.

Track Filter Condition on Your Phone: Keep a close eye on your filter life with the VeSync app.