For best results, replacement parts are replaced every 1 to 3 months. It can be easy to remove and replace as part of routine maintenance. It is easy to remove dirt, dust and garbage on the corners and edges of accessories, especially human and pet hair. The mop has strong and durable cleaning power, which can easily respond to stains, such as on the floor, juice residue, and oil stains. Replacement parts for Mi Robot Vacuum-Mop 2 Ultra STYTJ05ZHM robot vacuum cleaner.