Humidifier helps work against issues caused by dry air, such as the cold, flu, allergies, and dry skin Up to a 30-hour run time on a single fill 0.5 gallon tank capacity (4L output per day) Ultrasonic Technology provides virtual silence when running and eliminates the need for to replace or clean filters, wicks, or evaporating pads Integrated nightlight makes it great for kids' rooms Silver Clean Technology helps to fight the growth of mould and mildew on the surface of the water tank Soothing low and high cool mist settings Optional aromatherapy tray with essential oil pad included for your favourite essential oils