HEPA Filter: It is recommended to replace it every 3-6 months. Effective HEPA Filter for Xiaomi Robot Vacuum CleanerUnique design, easy to clean the dust box and in use. Side Brush: Practical side brushes for robot vacuum cleaner. Nylon brush, will not scratch the floor and furnitureUnique design, easy to collect ABS material, in use. Main Brush: It is recommended to replace it every 6-12 months. Practical rolling brush for Xiaomi Robot Vacuum CleanerFloating structure, deep cleaning. Sweeping robot vacuum cleaner dust removal accessories, replacement parts dust box, dust collection box can be combined with the vacuum cleaner to achieve a better cleaning effect. The accessories can easily remove dirt, dust and trash in corners and edges. Especially your hair and your pets' hair. Compatible with model: For Mi Robot Vacuum Cleaner 1st Generation (SDJQR01RR / SDJQR02RR) For Mi Robot Vacuum Cleaner 1S (SDJQR03RR) For S4 / S4 Max / T4 For S5 / S5 MAx For S6 / S6 Pure / S6 MaxV / P5 / T6