Compatible with: Suitable for Levoit Core 300 / Core 300S air purifier, 3-in-1 True HEPA & activated carbon & pre-filter, part number Core 300-RF, pack of 2, white. 【3-stage filtration design】: nylon pre-filter can block large particles such as animal fur, fibers and lint; real H13 HEPA filter can trap pet hair, pollen, air particles and other fine particles; activated carbon filter can absorb cooking odours, smoke and pet odors. Real H13 HEPA filter: Air purifier filter for Levoit Core 300 / Core 300S can remove 99.97% of airborne particles with a size of up to 0.3 microns, including pet hair, dust mites, mould spores and pollen and more. Remove pollutants and refresh the air. Ideal for allergy sufferers. Animal owner, Efficient activated carbon filter: This replacement filter for Levoit Core 300 / Core 300S air purifier can efficiently absorb household odours from pets, cooking odours and VOCs. Neutralises everyday household odours. Ensure a fresh, clean environment. Nylon