Filters maintain cleaning performance while reducing infiltration of dust, pollen and other allergens into the air you breathe.Often replace the filter to help make indoor air more fresh. Filter helps reduce household odorsThey are perfect fit and easy to install. Recommend to replace the filter every 2-3 months and shorten the replacement time if you have pets.Made of high-quality materials, strong and durable.When the cleaner is working, the roller brush will adjust the rotation and clean the floor.Material:plasticcolour:BluePackage Contents:1 x Main brush2 x Filter elements2 x side brush2 x cloth1 x Cleaning toolOnly the above package content, other products are not included.Note: Light shooting 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. About tracking number update: If your tracking number is no logistics information, as thousands of parcels sent to foreign countries, logistics companies did not update logistics information, please contact us the first time, Please kindly do not directly open the dispute. We are the first time for you to solve! Time of shipmen