Fully Compatible with for Air Purifier Model Core 300 and Core 300S, Part Core 300-RFContains Four (4) 3-in-1 Premium H13 True HEPA filtration system including Fine Pre-Filter, H13 Grade True HEPA Filter, and High Efficiency Activated Carbon FilterFine Pre-filter Traps larger particles in the air like dust, hairs, pet fur, lint, and prolong the life of HEPA filter; High-Efficiency Activated Carbon Filter neutralizes household odors from pets, cooking, smoke, and harmful VOC'sH13 Grade True HEPA Filter captures 99.97% of airborne particles down to 0.3 Micrometre in size, creating and purified air and your familyEasy to replace and disposable, no tools required. Replace every 6 months depending on the use and environment.Colour:As ShownMaterial:plasticSize:192x147mmPackage Contents:4 * HEPA FilterOnly 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 +/- 1-3cm.