The vacuum that doesn't lose suction. 36 Dyson Cinetic tips separate the microscopic dust that clogs other vacuums. No dirty filters to wash or replace dust separation in vacuums containing Dyson Cinetic science is so efficient that, unlike with other vacuums, there's no need to wash or replace a filter. & with no bags to buy, there are no hidden costs. Self-rights when toppled other vacuums fall down & stay down, but Dyson big ball canister vacuums pick themselves up. Hygienic dirt ejector drives out trapped dust & debris as you empty. Carbon fiber Turbine head carbon fiber filaments pick up fine dust. Stiff nylon bristles remove ground-in dirt. Ball technology allows the vacuum to turn on the spot & follow you effortlessly around the home, without awkward moves.