A robot vacuum only cleans as well as its consumables allow. Replace these six parts on schedule and your Roborock, Xiaomi or iRobot will perform like new for years.
The maintenance schedule
Main brush: every 6–12 months; tangled hair kills suction. Side brushes: every 3–6 months; bent arms sweep worse. HEPA filter: every 2–3 months; clogged filters strain the motor. Mop cloths: wash weekly, replace quarterly. Sensors: wipe monthly; replace if the vacuum misses walls. Battery: after 300–500 cycles, expect runtime loss — a fresh pack revives it.
OEM-fit vs universal
Buy kits that list your exact model. Poor-fitting brushes leave edge debris; loose filters leak dust back into the exhaust.
Find your model in our brushes and filters collection.