1. The dust box has built-in forming and good sealing, large capacity and easy disassembly.Highly match with the equipment.Effectively storage garbage and dust, prevent releasing harmful dust to the environment. Replacement dust box to improve machine performance 2. The filter can maintain the cleaning performance of the sweeper, while reducing the penetration of dust, pollen and other allergens into the air you breathe 3. Comes with a filter in the box help to filter the discharged air and 4. Improve cleaning efficiency, extend the life of the vacuum cleaner. 5. It is recommended that you replace spare parts every about 3 months depending on the frequency of use to keep the machine running at its best performance.Easy to remove and replace as part of routine maintenance.Often replace the filter to help make indoor air more fresh,helps. Type: Vacuum Cleaner Parts For Xiaomi Xiaomi MIJIA Dreame 1C/F9 1T vacuum cleaner. Colour: parent+white Material: plastic Package Contents: 1 x dust box 1 x filter Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.