General description New, high-quality materials ensure that the Main Brush Side HEPA Filter for Freo J3 Vacuum Cleaner is well-made and highly compatible with the equipment. Clean accessories help maintain your home robot's optimal performance while reducing the infiltration of dust, pollen, and other allergens into the air you breathe. Regular replacement of these accessories is essential for effective cleaning and filtering. Technical specifications Color: As shown Material: Plastic Package Contents: 1x main brush, 4x side brushes, 2x filters, 4x mop cloths, 1x 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 usage frequency. The filter's function is to trap dust, dirt, and other impurities inhaled by the vacuum, ensuring the robot remains clean and operates normally while extending its service life.