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. Side brush can go deep into the corners and edges to remove more dirt, dust and debris Easy to install and remove, no need to spend extra energy and time. The accessories are easy to remove dirt, dust and trash in corners and edges effectively. Especially your hairs and your pets hairs [Hepa Filter] 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 Material: plastic colour: black+white Package Contents: 1 x Main Brush 4 x Filter 6 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.