The Westinghouse Air Sterilization Humidifier is the ideal way to increase the moisture content of the air to improve your comfort. The mist helps keep your skin hydrated, improves nasal and sinus congestion, and soothes common cold symptoms.  This cold mist humidifier for the bedroom features an innovative electrolytic sterilization module to ensure a healthy indoor environment. Using just tap water, this humidifier runs the water through the electrolytic process to create electrolyzed water, which is a strong and natural disinfectant. Meanwhile, the humidifier's ultrasonic atomizer ensures that the electrolyzed water is converted into a hydroxyl mist, which removes odors. Independent testing has shown that this dry air humidifier consistently 99.9% in two hours.