Usage Tips:1.COMPATIBILITY: Our Core 200S Replacement Filter with 3-1-in True HEPA Filter perfectly compatible with LEVOIT Core 200S Core 200S-P Smart WiFi Air Purifier, Core 200S-RF. Please confirm your air purifier models matches our HEPA Filter parts before purchasing 2.EXCELLENT FILTRATION PERFORMANCE: The air purifier filter replacement adopts composite wet framework filter material to filter 0.3 micron dust in the air, filter 99.97% of air particles, such as pet dander, and keep the air at home or office y and clean. The high-efficiency activated carbon filter sheet can reduce household odors such as pets, cooking, smoking, and volatile organic compounds. Using foam adhesive for bonding, elastic will not burst, longer life 3.AFFORDABLE FILTER PACKAGE: Contains 2 pack air purifier filter for Levoit Core 200S, Core 200S-P, Core 200S-RF Air Purifier. Size: 7.1 x 7.1 x 5.35 inches, with HEPA filters replaced every 3-6 months or depending on air quality and frequency of use 4.EASY REPLACEMRNT FILTER: True HEPA filter replacements are easy to change and operate, and do not require any tools, ensuring that you replace old filters in minutes. Bring convenience and comfort to your life