Optimus U-32010 3.0 Gallon Warm Mist Humidifier with Wicking Vapor System, White

1.7 Gallon Tank Capacity | Operates up to 12 hours on high | Automatic shut off when tank is empty | Extremely quiet operation no bubbling or gurgling sounds | Variable humidistat and re-fill indicator light | Maximum moisture output of 3.0 gallons/24 hours | NOTE: Please refer to the user manual before use