DESC: The canister that doesn't lose suction. The DC23 Motorhead vacuum utilizes powerful bristles to remove dirt and pet hair while employing Level 3 Root Cyclone technology to capture microscopic dust. Hygienic, quick to empty, and easily guided into tight spots and corners, this unit also employs a geometrically balanced cleaner head for consistent floor contact and a thorough cleaning. Plus, the air expelled from the DC23 Motorhead contains less mold and bacteria than most vacuums' exhaust. From Dyson.