CAREFULLY CHEK YOUR MODEL NUMBER to be this is the right filter for your Air Purifier. This filter is compatible with for air purifier models Core Mini,Core Mini-RF, Work just like that come with unit. Cost-Effective : Value pack save much cost for your all year round air cleaning need. Higher level filtration performance for long time using, It is recommended to replace for 6-12 months. Using an old filter lowers your air purifier's efficiency. 3-STAGE FILTER SYSTEM: The -Filter, Personal HEPA Filter, and Activated Carbon Filter work to reduce airborne particles and unwanted odors in your living space for improved air quality. HEPA FILTRATION: The Personal HEPA Filter is treated with HEPA Smart Technology and meets the High Efficiency Particulate Air standard, trapping at least 97% of airborne particles 0.3 Micrometre in size. This includes fine dust, smoke particles, and allergens such as pollen and pet dander. TRAP HOUSEHOLD ODORS: The Activated Carbon Filter physically adsorbs smoke, cooking smells, pet odors, and toxic fumes, making it perfect for pet owners, smokers, and people who live in cities.No more cutting for HEPA filter. Replacement your old filter without others tool, save your time and convenient. Colour: white Material: composite material Package Contents: 1 * Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.