The accessory pack includes: 2 cleaning cloths, 2 HEPA filters, and 2 side brushes. The wiping cloth is made of polyester and nylon to remove ultrafine dust that would be left behind during normal vacuuming. The cloth is washable and reusable. It can be washed by hand or machine (preferably water temperature below 90°C). The washable filter has a tight seal to minimize air pressure loss and provide strong suction. The side brush sweeps the edges of the room, ejecting dust into the path of the vacuum system. The silicone texture cleans thoroughly without leaving marks on furniture or walls and is more durable than nylon bristles. The Teflon-coated surface of the filter ensures long-lasting lubrication when cleaned properly. To maintain optimal performance of the robot vacuum, we recommend replacing the cleaning cloth and side brush every 3-6 months. We recommend replacing the filter every 6-12 months.