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 gallon 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 max. output per day is 3.6 gallon. Crane Warm Mist Humidifier White - Around the Clock Comfort Warm mist output Removable water tank Water tank capacity: 1 gallon Running time per tank: minimum 7 hours Auto-off function when water tank is empty Brushed stainless steel front panel decoration Illuminated control switch Reservoir for steam medication Safety tip over switch