Compatibility Designed for LEVOIT Core300P, Core 300, Core 300S and VortexAir air purifiers. Compared to Part Core300RF. NOTE: This is not an OEM product. Any use of the brand name or model designation is solely to demonstrate compatibility. What this filter does H13 True HEPA captures 99.97% of airborne particles down to 0.03 microns, removing fine dust, pollen, mold spores and many allergens. Activated carbon layer absorbs smoke, cooking fumes and unpleasant odors, and reduces some volatile organic compounds (VOCs). Fine nylon preliminary prefilter traps larger particles and extends the life of the HEPA and carbon layers. Key features 3in1 filtration: 1) Fine nylon preliminary filter, 2) H13 HEPA grade filter, 3) Activated carbon filter. Materials: H13 HEPA media, activated carbon, and durable prefilter fabric. Pack contents: 4 x H13 True HEPA replacement filters for longterm use and value. Maintenance: every 6–8 months for performance (actual interval depends on usage and environment). Why you need it Improves indoor air quality by removing microscopic particles and common household odors. Helps reduce allergy and asthma triggers when used regularly in compatible LEVOIT units. Convenient 4pack provides spares so you can maintain consistent filtration without interruption. Practical use scenarios Bedroom: Use nightly to reduce pollen, dust mite fragments and pet dander for better sleep and fewer allergy symptoms. Kitchen / Apartment: Run near cooking areas to reduce smoke, grease particulates and odors from frying or strongsmelling foods. Living room or home office: Filter pet dander, smoke from candles or incense, and airborne fine dust in shared spaces. Notes and compatibility reminder Fits the specified LEVOIT Core300 series models listed above. Confirm model compatibility before . Not manufactured by LEVOIT; brand names are used only to indicate compatibility.