General description Brand new and made from high-quality materials, this Hepa Filter & Side Brush & Dust Bag set is designed for the IRobot Roomba S Series S9 and S9+ vacuum cleaners. These well-made and durable accessories ensure optimal performance of your home robot by effectively reducing dust, pollen, and other allergens in the air. Regular maintenance is easy with accessories that are simple to remove and replace. Technical specifications Color: as shown Material: plastic Package Contents: 1 x Roller Brush, 6 x Side Brush, 6 x Filter, 6 x Dust Bag, 1 x Cleaning Brush 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 the frequency of use. The filter functions to trap dust, dirt, and other impurities, preventing them from entering the robot's motors and extending its lifespan.