These hepa filter are washable. design, easy to clean the dust. Replacing your filter regularly also improve the cleaning performance and suction of your robot. Easy to remove and replace as part of routine maintenance, highly match with the equipment. Filters maintain for vacuum cleaner cleaning performance while reducing infiltration of dust, pollen and other allergens into the air you breathe. Colour: black + white Material: plastic Package Contents: 10 * 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.