Compatible Models: Just like the original accessory kit, this replacement accessory kit is specially designed for Roborock S8 Maxv Ultra/S8 Max Ultra vacuum cleaner. Please confirm your device model before ordering. Package Contents: Total 30pcs2 main brushes, 6 side brushes, 4 Hepa filters, 4+4 mop pads, 6 dust bags, 1 self-cleaning brush, 1 water tank brush, 1 cleaning brush, 1 screwdriver. It is really an economical choice for your Roborock vacuum cleaner. High Filtration Efficiency: The dust bag has a four-layer filter (non-woven fabric, 2 melt-blown cloths + non-woven fabric) that effectively filters 99% of dust particles and allergens up to 2.5 m. HEPA filters are equipped with more powerful capabilities to filter up to 99.5% of dirt, pollen, small dust particles and substances. You can effectively protect your Roborock vacuum cleaner and prevent the air we breathe from getting dirty. Effectively remove stubborn stains: With their unique design, the side brushes can penetrate deep into the crevices of the floor to remove dust and keep the noise level low. The mops are made of microfiber which is soft and can effectively remove stubborn stains. Based on usage: Main brush: every 6~12 months; Side brush: every 3~6 months; HEPA filter: every 3~6 months; VibraRise mops: every 1~3 months; Dust bag: every 1~2 months.