All UCAN ultrasonic humidifiers install immersion type Ultraviolet lamps (UV lamp).
UV lamp's germicidal ray sterilizes the water in the reservoir and kills various kinds of bacteria and viruses by effecting directly DNAs and RNAs that control their genes.
Since no chemical substance is used in sterilization, preventing chemicals or byproducts from being left in the water, and the mist has no effect on human body.
UCAN ultrasonic humidifier can be used to humidify food in refrigerated storage and food processing at ease.