REPLACEMENT FILTER: for Replacement Filters guarantees performance for the Core Mini Air Purifier3-STAGE FILTER SYSTEM: The Pre-Filter, Personal HEPA Filter, and Activated Carbon Filter work together to reduce airborne particles and unwanted odors in your living space for improved air qualityHEPA FILTRATION: The Personal HEPA Filter is treated with HEPASmart Technology and meets the High Efficiency Particulate Air standard, trapping at least 97% of airborne particles 0.3 microns in size. This includes fine dust, smoke particles, and allergens such as pollen and pet danderTRAP 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 citiesMaterial:plasticcolour:WhitePackage Contents:2 x HEPA Filter6 x spongesOnly the above package content, other products are not included.Note: Light 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.