Those who own them swear by them. The Dyson Cinetic™ Upright Bagless Ball Canister Multi-Floor Vacuum has no filters to wash or replace and ejects trapped dust and dirt all while maintaining strong suction. Dyson Cinetic(TM) tips separate the microscopic dust that clogs other vacuums and dust separation is so efficient that there's no need to wash or replace a filter. It captures microscopic particles including allergens and bacteria with a 2 tier radial cyclone that generates higher centrifugal forces and expels cleaner air than the air you breathe. This Dyson also rides on a ball to make steering easy into difficult places and self-adjusts to clean every floor type. Includes a mattress tool, multi-angle brush and stiff bristle brush.