This Crane Mist Humidifier provides additional comfort to cold symptoms, dry itchy skin, and chapped lips. The quiet humidifier won't disturb sleep and operates on a 2 step vapor output control for min. of 7 hours from a removable 1 Gal. water tank. It includes an automatic shut off safety feature and a tip-over switch. This humidifier produces pure bacteria free vapor and includes a medication cup to evaporate liquid vapor medication. The control panel features a 2 step vapor output control on a sleek stainless steel panel for added design. The maximum output per day is 3.6 Gal.