Harper XSILENCE Manuel De L'utilisation page 19

3.
Small brush
To clean curtains, book shelves, inlaid furniture, lamps etc.
Clean the dust
1. Lift the front cover and take out the dust container.
2. Take out the washable sponge from cover.
3. Clean off the dust inside the dust container
Clean the sponge
1 .Take out the washable sponge from cover when it's dirty.
2. Clean it in the water and dry it naturally before next use.