[Hepa Filter] HEPA filter is made of high-strength environmental-friendly materials, which can block most of dust down to 0.3 micrometer. 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 Easy to Assemble: This filter is inside the dirt tank. Remove the dirt bin by firmly grasping it and pulling it out, to empty the dirt bin, find the release latch and pull it to open and empty. Take out the old filter and then place the filter back into the bin. Replacement Filter: A dirty filter will greatly reduce suction power. Depending on the vacuuming frequency and amount of dirt cleaned, for best performance, change the filter at least every 3 to 6 months. [HEPA Filter]Made of high-strength environmental-friendly materials, which can block most of dust down to 0.3 micrometer. The filter can maintain the cleaning performance of the sweeper, while reducing the penetration of dust, and others into the air you breathe. [Compatible Models]Perfect for Xiaomi Mijia Robot Vacuum M30 PRO C107 Vacuums. Made of high-quality materials, environmental friendly materials, soft and durable to use. Applicable Models For Xiaomi Mijia M30 Pro /C107 For Xiaomi Mijia Self Robot Vacuum Mop 2 For Xiaomi Mijia Robot Vacuum 3C Colour:White Material:plastic Package Contents: 4 x Filter