While the ultraviolet disinfection technology may not be a necessity, keeping a humidifier clean is vital. In other models, that requires scrubbing any part that contacts water to keep bacteria from forming and being distributed into the air. By treating the reserve water, the Dyson will move only clean fluid.  Photo 3 of 5 in Dyson Humidifier Will Keep Your Air Clean Using Bacteria-Killing Technology by Alexander George

Dyson Humidifier Will Keep Your Air Clean Using Bacteria-Killing Technology

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While the ultraviolet disinfection technology may not be a necessity, keeping a humidifier clean is vital. In other models, that requires scrubbing any part that contacts water to keep bacteria from forming and being distributed into the air. By treating the reserve water, the Dyson will move only clean fluid.