Features:

3-in-1 All-in-One Filter: combines a primary filter, Xiaomi’s High Efficiency Filter, and a high-quality activated carbon filter for effective air purification.
Primary Filter: 360° filtration of large particles such as dust, hair, and crumbs, ensuring long service life and resistance to oil, acids, and alkalis.
High Efficiency Filter: removes up to 99.97% of airborne particles as small as 0.3 microns, including PM2.5, pollen, pet dander, and smoke.
Activated Carbon Filter: contains a large amount of activated carbon to effectively remove odors like pet smells, cigarette smoke, VOCs, and cooking fumes.
Recommended Replacement: replace every 6–12 months depending on usage and air quality.
Compatibility: specifically designed for the Xiaomi Smart Air Purifier 4.