Filter can maintain the cleaning performance of the vacuum cleaner while reducing the penetration of dust, pollen and other pet hairs into the air you breathe. Rear filter and front filter can dust and discharge , effectively filter to reject secondary pollution. We recommend that the HEPA filter needs to be replaced with a new one/cleaned every 6 months to keep the vacuum cleaner working efficiently. Replacing the accessories regularly will also improve the cleaning performance and suction of your robot vacuum cleaner / sweeping. Floor cleaner filter also can help to provide you with air and healthy living environment. Applicable Model: for RO69 Series ZR006001 RO6921EA RO6941EA RO6951EA RO6954EA RO6962EA RO6963EA RO6971EA RO6984EA RO6993EA vacuum cleaners. Helps clean the vacuum cleaner and makes your lifestyle healthier Applicable Model For ZR006001 RO6921EA RO6941EA RO6951EA RO6954EA RO6963EA RO6984EA Color: black and white material: plastic Package Contents: 3 x Rear filter 3 x front filter 1 x Cleaning 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.