1Simple installation method, it is easy to replace and use, made of high quality materials, durable and sturdy, has a long service life. 2Using high strength environmental protection materials, it can reduce the occurrence of dust, pollen and other allergens entering the air you breathe, with high efficiency and strong water absorption and good cleaning performance. 3Washable design, it can be reused, easy to clean, in order to get the best results, the filter should be replaced every 23 months. 4High adaptability, it can be perfectly adapted to the corresponding replacement location, you only need to remove the original accessories and find a suitable location to install it. 5High quality filters help improve the performance of the sweeping robot and prolong the service life of the machine.