Vicks 1.5 Gal. Warm Steam Vaporizer has new Dual Slot Scent Pad Technology which provides soothing vapors while you sleep for additional cough and congestion comfort. The exclusive Vicks Vaporizer with SteamGuard design provides maximum performance and reliability and the design lowers the outlet steam temperature by 20%. The 1.5 gallon capacity runs for 18-24 hours of operation per filling and the triple wall insulation keeps the reservoir water at a safe temperature. There is an automatic shut-off when the reservoir water reaches the minimum level. Has a locking top, The medicine cup allows the use of Vicks VaporSteam or KAZ Inhalant, A large night light provides added convenience particularly in childrens rooms, 3 Year Warranty