General description Air Filter for Xiaomi Mi 1/2/2S/2C/2H/3/3C/3H Air Purifier is designed to effectively remove dust, PM2.5 particles, pollen, allergens, bacteria, and formaldehyde, ensuring cleaner air quality in your environment. Technical specifications Type: Purifier Filter Color: Blue Material: Plastic Package Contents: 1 * Purifier Filter Measurement allowed error: +/- 1-3 cm