For Xiaomi Mijia G1 MJSTG1 Robot Vacuum Essential Main Rolling Brush Side Brush Hepa Filter Mop Cloth Water Tank Dust Box Parts Descriptions: 1. Those Accessories are and new; 2. Recyclable, smooth to disassemble; 3. In order to extend the lifetime of the accessories, please clean them regularly. 4. The spare parts are adding Mop Cloths and Mount,Water tank, HEPA Filters,Dustbin,Main brush and brush Cover,Side brush. Clean brushes keep your house robotic operating at peak performance. Side brushes are clean to take away and replace as a part of standard maintenance. Filters maintain cleaning functionality whereas decreasing infiltration of dust, pollen and varied allergens into the air you breathe. For superb results, filters must be changed each 2 - three months.