suitable for 10PCS for LIECTROUX C30B Robot Proscenic 800T 820S Robot Vacuum Cleaner Replace Parts HEPA Filter-CHENG DU SI XI A dust filter is created in tiny dust and bacteria to reduce secondary air pollution. 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 new 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. Fine preliminary Filter traps larger particles in the air like dust, hairs, pet fur, lint and more Compatible with: For Proscenic 800T 820T 820S 830T For LIECTROUX C30B Colour:White Material:plastic Package Contents: 10 x HEPA Filter Only the above package content, other products are not included. Note: Light reflection 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. Please pay attention to the title and description when buying, and pay attention to the title and description when buying. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.