Dysn Cntc Bgbl Anmlalrgy No dirty filters to wash or replace. Dyson CineticTM science captures the dust that clogs other vacuums' filters. Self-adjusting cleaner head. Seals in suction across carpets and hard floors. Wand and hose release in one smooth action, so it's easy to clean up high and under furniture Hygienic bin emptying. Just push the button to release the dirt.