LEVOIT Core 400S RF Air Purifier HEPA Replacement Filter, Highly Efficient Activated Carbon Pre, Filter Against 99.97% Allergies Dust Pollen Smoke, RF, White

【Upgraded HEPASmart Technology】 Our HEPA Filter is safer than medical surgical mask materials and can achieve a better purification effect than traditional general HEPA. It captures 99.97% of dust and allergens as small as 0.3 microns such as household dust, pet dander, mold spores and plant pollen 【Capture Large Particle】 Ultra-fine Nylon Pre-Filter captures large particles such as dust, lint, fibers, hair, and pet fur, also helpful to maximize the filter’s life 【Custom High-Efficiency Activated Carbon Filter】 Physically adsorb fumes, odors, fumes and volatile organic compounds (VOC). Help purify the air more effectively 【Protect Your Investment】 It is highly recommended to use this officially designated replacement filter (Core 400S-RF) to keep your Core 400S air purifier at its best working efficiency and capacity, breathing fresher and cleaner air all the time 【Note】 When replacing the filter, please remove the cover from the top and then put the filter into the air purifier. Do not clean the filter with water or other liquids 【Responsibly Sourced Wood】The activated carbon in the filter is made from responsibly sourced, FSC-certified wood