For Mi filter replacement guarantees 100% compatibility with Mi Air Purifier models including Mi 1, Mi 2, 2S, 2C, 2H, Mi 3, 3C, 3H, and Mi Pro, making it a perfect fit for model # M8R-. Due to precise design and measurements, it seamlessly fits in your purifier, ensuring zero compatibility issues. Check your model and size before ordering to ensure proper fit. This Mi Air Purifier filter replacement is made from high-quality materials. The high-density pre-filter provides resistance against folding, oil, and acid, effectively capturing large pollutant particles. The H13 True HEPA filter reduces wind resistance and enables rapid air circulation, designed to capture 99.97% of particles as small as 0.3 microns. The high-efficiency activated carbon layer helps reduce gases and remove odors. Maintain optimal performance by replacing the filter every 6 to 12 months. Over time, filter efficiency decreases, which may lead to reduced air quality. Mi 1 and Mi 2 air purifiers do not have chip recognition; to reset after filter replacement, locate the reset button on the back of the unit, press and hold for 5 to 7 seconds until a sound confirms successful reset. This replacement filter offers reliable performance and durability. Designed for long-term use, it provides a cost-effective solution for maintaining clean indoor air. Available in convenient replacement sets to minimize frequent ordering. Type: Air Purifier Filter Color: Gray Material: Composite materials Package Contents: 1 x Air Purifier Filter Only the above package content is included; other items are not part of this sale. Note: Lighting and display settings may cause slight variations in color between the image and the actual item. Measurement tolerance is +/- 1-3 cm.