Use this warm steam vaporizer for relief of cold and flu symptoms. Design provides maximum safety, performance and reliability. Vaporizer boils water producing a pure warm steam vapor which is released into the air. Vapor is up to 96 percent bacteria free and leaves no white dust. Design lowers the outlet steam temperature by 20 percent. 1.5 gallon capacity lasts for 18 to 24 hours per filling. Triple-wall insulation keeps reservoir water at a safe temperature. Large night light provides added safety and convenience. Vaporizer has an automatic shutoff when reservoir water reaches minimum level. Exclusive carbon electrodes will not rust or corrode and require less frequent cleaning than metal electrodes. Vaporizer includes a medicine cup for enhance the vapors.