Dyson Cinetic Big Ball Animal Vacuum, (Certified Refurbished) - Corded No dirty filters to wash or replace. Dyson Cinetic science captures the dust that clogs other vacuums filters. Self-adjusting cleaner head. Seals in suction across carpets and hard floors. Hygienic bin emptying. Just push the button to release the dirt. Whole-machine HEPA filtration ensures allergens and bacteria are trapped inside the machine. Ball technology. Steers easily into difficult places.