Effectively keep household dust, pollen and mold spores away from us. For optimal performance, it is recommended to wash the filter once every month and change the filter 3 months. Cleaning your filters can help keep your cordless Dyson at its very best for longer. Easy to install: Simply remove your old filter and put this brand new one in it's place! Fit for Xiaomi Dreame V9/V10/V11 Vacuum cleaner. Colour: as shown Material: plastic + fluff Size: 15 x 8 x 6cm Package Contents: 1 x roller main brush 2 x filter 1 x cleaning brush Only 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.