Filters maintain the robot's cleaning efficiency by reducing the ingress of dust, pollen, and other allergens into the air. Accessories should be replaced every 1 to 3 months. Keep your robot vacuum working at its best. All parts are made of high-strength, environmentally friendly materials. The parts are durable and easy to install. It is easy to remove dirt, dust and debris from the corners and edges of the accessories, especially human hair and pet hair. Compatible models RoboVac X8, X8 Hybrid Color: Blue Material: Plastic Package Contents: 10 x Hepa Filter Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.