[for LEVOIT Vital 100S Air Purifier] The Vital 100S replacement filter is designed to be fully compatible for LEVOIT Vital 100S air purifiers, contains 4 packs filter replacements, ensuring optimal performance. Compared to Part Vital 100S-RF. Please note that not fit for Levoit Vital 100 for Levoit Vital 200S Air Purifier, and the mention of the brand name or model designation for this product is purely intended to demonstrate compatibility. [Enhanced Filtration Performance] The Vital 100S filters feature an upgraded 3-stage filtration system, utilizing HEPA material to effectively capture 99.9% of particles as small as 0.3 microns. This includes common household allergens like dust, pet dander, and pollen, ensuring cleaner air for your home. [Combat Household Odors] Designed to tackle unwanted odors, the vital 100s replacement filters include a high-efficiency activated carbon layer. This effectively eliminates pet odors, smoke, cooking fumes, enhancing indoor air quality and promoting a healthier living environment for pet owners and smokers alike. [COST-EFFECTIVE] We recommend replacing for LEVOIT 100S air purifier filter every 6-8 months for optimal performance, depending on usage and environment. Installation is easy with no tools required. Simply replace the filter as needed. Color: black+white Material: non-woven fabric Package Contents: 4 x Replacement Filter