Perfect Compatibility: Specifically designed for Xiaomi Mi Air Purifier 5S, this replacement filter maintains optimal performance. It matches the original in both function and fit, ensuring efficient operation. Advanced 3-Stage Filtration: Features a multi-layer system including a fine nylon preliminary filter, H13-grade HEPA filter, and an activated carbon filter. Effectively traps and reduces airborne pollutants for cleaner air. High-Efficiency Performance: Captures up to 99.97% of fine particles and allergens as small as 0.3 microns. The activated carbon layer helps absorb common household odors from pets, cooking, and smoking. Optimal Filter Life: Replace every 6–8 months for best performance. Actual lifespan may vary depending on local air quality and usage frequency. Function: Filters dust and other airborne pollutants. Recommendation: Replace regularly to maintain filtration efficiency. Color: White Material: Composite material Package Contents: 1 x Air Purifier Filter