Xiaomi Mi Air Purifier Filter Anti-formaldehyde The HEPA filter is designed for use in air purifiers. The filter effectively eliminates unpleasant odors. Provides air filtration, retaining most of the pollutants. It absorbs the smallest particles of dust and eliminates the occurrence of allergens and micro-pollutants. A simple replacement procedure ensures comfort of use. Regular replacement of the filters ensures optimal operation of the air purifier. 3-layer anti-formaldehyde filter designed for popular Xiaomi air purifiers. The above-average effectiveness is due to 3 layers, which consists of: - basic protection net - H11 high-performance filter mesh - activated carbon filter The E11 filter ensures high efficiency. Retains up to 99.97% of solid particles and contaminants as small as 0.3 microns. Designed to block airborne formaldehyde, harmful PM2.5 particles and specific odors. Recommended replacement every 3-6 months Set contains: Original Xiaomi Air Purifier antibacterial filter Informative contribution