Pack of 4 electrostatic cotton filters measuring 71 x 30 cm (28 x 12 inches), HEPA PM2.5 filtration, compatible with Philips and Xiaomi Mi air purifiers.

The use of an electrostatic filter material effectively isolates particulate pollutants larger than 0.2 μm from the air; the filtration efficiency for dust particles as small as 0.5 μm can reach over 95%. This efficient filter traps dust, pollen, bacteria, and other airborne pollutants while protecting the filter elements from contamination. It can significantly extend the lifespan of the air purifier filter, thus reducing replacement costs. The pre-filter used for the final air purifier filter elements effectively increases the filter's lifespan, allowing it to reach the manufacturer's specified lifespan. At a wind speed of 0.5 m/s, the wind resistance is only 3.5 Pa, without affecting the airflow velocity. This filter is compatible with Xiaomi Mi 1/2/Plus air purifiers, or can be cut to the appropriate size for air conditioners, window fans, and electric fans. 1. Filters soot, PM2.5, etc. 2. When used with a HEPA filter placed in front of it, it effectively extends its lifespan. White, soft, non-toxic, odorless, washable 1-2 times (do not rub vigorously). Area of use: Modified air purifiers for air conditioners, fans, household air extractors, etc. Color: White. Material: Cotton. Package contents: 4 cotton filters. Only the above-mentioned contents are included. Other products are not included. Note: The color of the item in the photo may slightly differ from the real thing due to lighting and your monitor settings. A margin of error of +/- 1 to 3 cm is possible.