100% Made of high-quality materials, environmental friendly materials, soft and to use. 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 Easy to install and remove, no need to spend extra energy and time. Side brush can go deep into the corners and edges to remove more dirt, dust and debris Replacement Filter: A dirty filter 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. Applicable Models: For Robot Vacuum E10 For Robot Vacuum E12 Material: Plastic colour: As shown Package Contents: 1 x Main Brush 4 x Filter 4 x Side Brush 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.