Filter HEPA with chip for purifiers XIAOMI SMART AIR PURIFIER 4 PRO HEPA filter for Xiaomi Smart Air Purifier 4 Pro the highest quality filter replacement adapted to work with Mi Air Purifier series air purifiers; The cartridge has, in addition to the standard pre-filter of large particles and the HEPA filter, a specially prepared activated carbon cartridge that allows the removal of formaldehyde particles, ammonia compounds and other harmful substances from the air thanks to the construction and materials used, it removes over 99.99% of PM0.3, PM2.5, PM10, bacteria, heavy metals, organic substances, etc.     - 360 stage filter - dense filter HEPA H13 - Activated carbon filter - high quality of workmanship - Removes dust, dust, suspended particles, plant pollen, animal fur - filters particles from 0.3µm (PM 0.3) - Easy and quick installation   Filter compatible with: Xiaomi Mi Smart Air Purifier 4 Pro   Dimensions: Height 356 mm Diameter 225 mmThickness 40 mm   *The filter replacement has an RFID chip that indicates filter wear. It is recommended to replace the filter every approx. 3-6 months (in case of intensive use, it can be replaced more often).   Brand: Inna Brand (own brand): Zeyxo