Backpack Vacuum, Vacuum Power Source Corded, Vacuum Filtration Type HEPA, Vacuum Collection Type Disposable Bag, Vacuum Capacity 2 1/2 gal, Vacuum Pickup Type Dry, Vacuum Air Flow 139 cfm, Static Pressure 96 in, Weight 10.8 lb, Height 23 in, Sound Level 62 dB, Number of Motor Stages 1, Power 1,300 W, Current 10 A, Voltage 110 to 120, Hose Dia. 1 1/4 in, Hose Length 3 ft, Power Cord Length 50 ft Bagged, corded backpack vacuums trap dirt, dust, and allergens in replaceable bags that are discarded when full. They keep debris contained for disposal to help prevent recirculation of dust and allergens, making them a common choice for vacuuming in healthcare and educational settings. These backpack vacuums allow movement as far as the cord extends for cleaning underneath, around, and between furn.