Hoover U6454-900 Self Propelled Windtunnel Ultra Bagged Upright Vacuum Self Propelled Action Grip automatically engages drive for nearly effortless maneuverability in both forward and reverse hand motion Includes manual override if needed Brush Roll Stop - brush roll automatically stops when handle is raised for tool use Manual brush roll shut-off for hard floor cleaning Embedded Dirt Finder - a sensing technology that tells you when your carpet is clean Dirt stays in the Filtrete HEPA Filter Bag, part of the highly efficient Filtrete Filtration System from 3M Pet Hair Cleaning Tool provides powered brushing action for cleaning carpeted stairs and upholstery