General description Brand new and made from high-quality materials, this replacement accessory set for Dreame H12pro/Plus/M13Beta includes a soft roller brush and HEPA filters. These components are durable and perfectly matched to the equipment, ensuring optimal performance for your home robot. Clean accessories help maintain the robot's efficiency while reducing dust, pollen, and other allergens in the air. Technical specifications Material: Plastic Color: As shown Package Contents: 2 x Roller Brush, 8 x Filter Measurement allowed error: +/- 1-3 cm Usage To achieve the best cleaning and filtration effect, it is recommended to replace the cleaning accessories every 2-3 months, depending on usage frequency. The filter's function is to capture dust, dirt, and other impurities inhaled by the sweeping robot, preventing them from entering the robot's motors and extending its lifespan.