Filter filters fine dust to reduce dust, pollen and other allergens from penetrating into the air you breatheDoes not damage floor and furniture and ensures quiet operationAs part of normal maintenance, it can be easily removed and replacedIt is best to replace the spare parts every 2 to 3 months to keep the machine running at peak performanceFor Thamtu G11 robot vacuum cleanerColour: As shownMaterial: PlasticSize: 16.3cmPackage Contents:1 x main brush4 x side brush3 x filter1 x cleaning brushOnly 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.