The Dyson Cinetic Big Ball Animal Canister is the only vacuum with no filters to wash or replace, no bags to buy, and strong suction. Dyson Cinetic Science - Dyson Cinetic science is our biggest technological breakthrough since we invented cyclonic vacuum cleaners: engineered to solve the problem of filters clogging and losing suction. So itâ€™s the only vacuum cleaner with strong constant suction and no dirty bags or filters to wash or replace. Self-Righting Technology - Dyson Big Ball canister vacuums are monocratic: they have a single stable resting point. Dyson engineers made this possible using a complex configuration of the vacuumâ€™s components. By assembling them in a spherical array, with the heaviest components near the floor, we created a curved body with a low center of gravity. This means that whenever the vacuum is displaced from its resting position, gravitational force will automatically return it. Or more simply, when itâ€™s knocked over, it gets back up. Hygienically Ejects the Dirt - Dyson Big Ball canister vacuums feature a new bin emptying mechanism. You can hygienically drive out trapped dust and debris with just the push of a button. Thereâ€™s no need to touch the dirt. Includes a 5-year warranty covering parts and labor. Color: Metallics.