Perfect Compatibility: Specifically designed For Mi Air Purifier 5S air purifiers, this replacement filter maintains optimal performance. It matches the your in both function and fit, ensuring your air purifier operates efficiently. Advanced 3-Stage Filtration: This filter features a multi-layer system including a Fine Nylon Preliminary Filter, 13 Grade HEPA Filter, and an Activated Carbon Filter. It effectively traps and reduces pollutants, providing cleaner air. High-Efficiency Performance: Captures up to 99.97% of fine particles and as small as 0.3 microns. It also absorbs odors from pets, smoking, and cooking with its activated carbon layer, enhancing your living environment. Optimal Filter Life: To achieve the best air filtration and purification, replace the filter every 6-8 months. The lifespan based on your local air quality and how frequently the air purifier is used. Product function: Filter dust and other pollutants Recommendation: Replace the product regularly to prevent secondary pollution Color: White Material: composite material Package Contents: 1 x Air Purifier Filters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.