No matter what they say, ALL other vacuums lose suction. Only Dyson Cinetic™ science doesn’t1. See how Dyson Cinetic removes the need for a filter that will eventually clog, even after regular filter washing. 1Historically, manufacturers based “no loss of suction” claims on a single test that can be completed before a vacuum’s bin is full. We repeat that test to bin full 100s of times consecutively, amounting to 10 years’ worth of test dust, to ensure vacuums containing Dyson Cinetic™ science maintain constant suction.