- 1.3-IN-1 TRUE HEPA FILTRATION SYSTEM: Each filter features a 3-stage filtration process, including a Pre-filter, H13 True HEPA filter, and an activated carbon filter, providing superior air purification for cleaner air in your home. - 2. HIGH EFFICIENCY HEPA AIR FILTER: The H13 True HEPA filter captures 99.97% of airborne particles as small as 0.3 microns, including dust, pollen, and pet dander. The air purifier filter is great for allergy sufferers and those who need extra air protection. - 3. AIR FILTER COMPATIBLE WITH LEVOIT CORE 300: The air purifier filter replacement is designed to be compatible with LEVOIT Core 300S, Core300S/300-P and Core P350 Air Purifier, Part No: Core 300-RF. Ensuring optimal performance and consistent air purification. - 4. EASY INSTALLATION: Installing and replacing the air purifier filter is easy, allowing you to keep your purifier running efficiently with minimal effort. We recommend cleaning the HEPA filter replacement every 2-4 weeks and replacing it every 4-6 months. - Key benefits: - Improves indoor air quality through a 3-stage filtration system including activated carbon for odor control. - High filtration efficiency captures 99.97% of particles at 0.3 microns, aiding allergy relief and enhanced protection. - Maintains compatibility with LEVOIT Core 300 series purifiers (Core 300S, Core300S/300-P, Core P350) with Part No: Core 300-RF. - Simple maintenance schedule with clear guidance for cleaning and replacement to sustain performance. - Practical use scenarios: - In households with seasonal allergies, use this filter to reduce dust, pollen, and pet dander in living rooms or bedrooms. - For homes with pets, replace filters regularly to minimize pet-related pollutants and maintain cleaner air. - In small offices or compact rooms, use with LEVOIT Core 300 series purifiers to sustain consistent air purification and comfort.