This is a vacuum cleaner intended for attaching to power tools with a dust extraction system and for sucking up DIY detritus. The hose, cable and bits all pack away inside the machine when not in use. You can also swap which ends the hose and filter attach to and use it as a blower.
It is quite dusty! It contains a single reusable bag, and had a very basic foam filter, both probably need a good wash.