There are plenty of reasons why you might need a humidifier. But whatever the cause, you can pretty much guarantee that spreading bacteria around the room isn't a good idea. Which is why you need the Dyson Humidifier. Using Ultraviolet Cleanse technology, it kills 99.9% of bacteria in the water, which is more than you can say for most of its competitors. It also leverages the company's bladeless Air Multiplier technology to project its mist evenly throughout the room, using temperature and humidity sensors to keep you in your comfort zone, and doubles as a high-velocity fan when humidification isn't needed.