The Vicks Warm Steam Vaporizor provides pure steam action for relief of cold & flu systoms. The exclusive Vicks Vaporizer with SteamGuard design provides maximum performance and reliability. The vaporizer boils water producing a pure warm steam vapor which is released into the air. The Protective SteamGuard design lowers the outlet steam temperature by 20%. The exclusive non-rust carbon electrodes operate efficiently in any water conditions and require less frequent cleaning. 1) 1 gallon capacity for 12-18 hour operation per filing, 2) Triple wall insulation keeps reservoir water at a safe temperature, 3) Large nightlight provides added safety and convenience, particularly in children's rooms, 4) Automatic shut-off when reservoir water reaches minimum level, 5) Medicine cup allows the use of Vicks VaporSteam.