COMPATIBILITY: These True HEPA replacement filters are compatible with the Core Mini air purifier, perfect for living rooms, bedrooms, desks, and offices. 3-STAGE FILTRATION SYSTEM: Featuring a 3-in-1 True HEPA filtration system, including a fine pre-filter, H13 True HEPA filter, and activated carbon filter, this high-performance filter reduces airborne particles and unwanted odors in your living spaces. H13 TRUE HEPA FILTER: The premium H13-grade True HEPA filter captures 99.97% of airborne particles as small as 0.3 microns, removing dust, pollen, smoke, odors, and pet dander, effectively creating and purifying the air for you and your family. ACTIVATED CARBON FILTER: Our filter uses high-performance activated carbon to effectively absorb various unwanted household odors from pets, cooking, smoke, and VOCs. Ideal for pet owners, smokers, and city dwellers. Easy to Install: The filter is easy to replace and dispose of without any tools. Regular cleaning and replacement can improve the performance of your air purifier. For best performance, it is recommended to replace the HEPA filter every 4-6 months depending on the environment and frequency of use. Size: 147 x 123 mm Material: Plastic Color: White Package Contents: 4 x Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.