Kills 99.9% of bacteria - Ultraviolet Cleanse technology kills bacteria before hygienic mist and hydrated air is projected into the room;Patented Air Multiplier technology - Generates long-range mist projection to distribute hydrated air evenly;Intelligent Climate Control - The Dyson humidifier uses Intelligent Climate Control to measure both the temperature and the moisture in the air to create a comfortable environment;Whole room hydration - Projects ultrafine hygienic mist and hydrated air evenly throughout the room;Night-long comfort - Sleep timer and up to 18 hours of continuous use