To achieve the best filter cleaning effect, the cleaning accessories should be replaced every 2 to 3 months depending on the frequency of use. Whether you want to perform a deep cleaning or just need to quickly pick up a few crumbs, this main brush will get the job done on any surface. The main brush allows your vacuum to penetrate deep into the carpet for a thorough cleaning. Clean accessories keep your home robot running at its best. The contents of the accessories are easily removed and replaced as part of routine maintenance. Made of durable plastic, this main brush is designed to effectively remove dirt and debris from carpets and hard floors.