General description New high-quality materials ensure that this HEPA filter and accessory set for Xiaomi Robot Vacuum Mop Mijia 1C 1T and Dreame F9 is well-made, durable, and highly compatible with the equipment. These clean accessories help maintain your home robot at peak performance by effectively filtering dust, dirt, and other impurities, while also reducing the infiltration of allergens such as dust and pollen into the air you breathe. Technical specifications Type: Sweeper Accessories Color: as shown Material: Plastic Package Contents: 2 * Main Brush, 4 * Side Brush, 4 * Filter, 2 * Cleaning Brush Measurement allowed error: +/- 1-3 cm Usage To achieve the best cleaning and filtering effect, it is recommended to replace the cleaning accessories every 2-3 months, depending on the frequency of use. The filter prevents dust and dirt from entering the motors and other parts of the robot, thus extending the robot's service life. The rotating brush effectively cleans dust and debris