The products are made of high-strength and environmentally friendly materials to optimal performance and a healthier . 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 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 3 to 6 months. Easy to install and remove, no need to spend extra energy and time. Easy to clean, Help to remove dirt, dust and trash on the floor. Applicable models: For D5 D70 D75 D80 70E D85 Colour:yellow :plastic Size:20.2 x 6 x 3.5CM Package Contents: 6 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.