Made of high quality material, more . 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 into the air you breathe 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. Replacement Accessories for the damaged, non-working, or missing one Helps clean the vacuum cleaner and makes your lifestyle healthier Color: Grey white Material: ABS Package Contents: 3 x Front 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.