The Metrologic Instruments Vacuum is a bagged canister vacuum that has been built to give you outstanding results on your cleaning efforts. The Metrologic Instruments ADM-4PNHSF has HEPA-certified filters which clear up most of the dust and other allergens from the air making sure that your house is clean. Moreover, this canister vacuum can cranks out an impressive 4-hp of power, and can be used on bare floor as well as carpets, to give your house a sparkly clean look. Also, the Metrologic Instruments Vacuum has a pistol grip with a mounted power switch, an extendable wand and uses disposable paper bags, to keep your efforts to a minimum. For those of you looking for a canister vacuum that does most of the work for you, the Metrologic Instruments ADM-4PNHSF is the vacuum of choice for you.