HOMEIMAGE 1.5 Gallons Output per day, 4.5L (1.19Gallon) Large Tank Capacity Cool Mist Humidifier- HI-HYB21 (Black) 4.5L (1.19 gallon) Extra Large Capacity Cool Mist Humidifier 360 degree adjustable mist nozzle with variable volume control 1.19 gallon water tank runs whisper quiet up to 24 hours Removable water tank for easy refill. Auto shut off when tank is empty Equipped with night light