The Honeywell Cool Moisture Humidifier is an excellent addition for those searching to help establish a pristine breathing environment. Providing the height of convenience and efficiency, this cool moisture humidifier features a quiet operation and a break-resistant water tank. Accessibility has also been addressed with the utilization of a wide tank opening that allows for easy filling and cleaning. The HEV320B discharges invisible cool moisture in 2 moisture output settings. This cool moisture humidifier is an ideal fit for smaller to medium sized rooms and is capable of running for 18 uninterrupted hours per filling.