HEPA Air Filter Cartridge Compatible With Xiaomi Air Purifier 1, 2, 2S, 2C, 2H, 3, 3C, 3H, Effective Against PM2.5, Dust, Odor, Compatible With Xiaomi Air Purifier 1, 2, 2S, 2C, 2H, 3, 3C, 3H Filters With RFID Chip