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Halo Ultraviolet Vacuum
It's going to take a lot for us to put down our Dysons, but the Halo UV-ST Ultraviolet Vacuum ($500) sure makes a convincing argument. It's the first vacuum to use UV-C light to kill unseen bacteria and germs hiding in your carpet and flooring, and also includes "normal" vacuum features like a lightweight design, integrated HEPA filtration, adjustable height, a 13-foot detachable hose, and a 31-foot power cord. Killer.