The dyson humidifier uses ultraviolet cleanse technology exposing every drop of water to an ultraviolet light the dyson humidifier uses air multiplier technology to project hygienic humidified air evenly across a 16m2 size room quickly and quietly the dyson humidifier measures temperature and humidity and adjusts accordingly to create a comfortable hygienic environment the first humidifier to meet the asthma allergy friendly standard asp18 01101 tested and verified by airmid health