- Roller for Xiaomi D9 vacuum cleaner. Essential spare part to keep the drive system stable and movement smooth. Compatible with Xiaomi D9. Durable construction for long service life. - Brush for Xiaomi D9 vacuum cleaner. Replacement brush head for effective debris pickup and reduced tangling on carpets and hard floors. Compatible with Xiaomi D9. - HEPA filter for Xiaomi D9 vacuum cleaner. High efficiency filtration traps fine dust and allergens, helping maintain suction performance and air quality. Compatible with Xiaomi D9. - Mop kit for Xiaomi D9 vacuum cleaner. Wet mopping capability with 4 mop heads included for hard floors. Easy to replace to maintain mopping effectiveness. - Cloth replacement for Xiaomi D9 vacuum cleaner. Replacement cloths and kits to sustain cleaning performance. Compatible with Xiaomi D9. - Use scenarios: - Routine maintenance in homes with pets: replace worn rollers, brush, and filter to preserve hair pickup and air cleanliness. - Deep cleaning on hard floors and low-pile carpets: use the mop kit for damp cleaning and rely on the HEPA filter to trap fine dust. - Multi-room cleaning with downtime minimized: keep spare parts on hand to quickly swap in and maintain performance.