Optimus 7255444 1.5-Gallon Cool Mist Ultrasonic Humidifier, 12inH x 8inW x 10inD

Choose this cool mist humidifier to add moisture to your space. The transparent tank can hold enough water for 18 hours of use, making this ultrasonic humidifier a great option for overnight use. Works with a room up to 250 sq ft. Tank holds up to 1.5 gallons and can operate for up to 18 hours. Mist volume is adjustable to suit your needs. Whisper-quiet humidifier can be used at night. Tank is transparent to help you see how much remains and removable for easy filling. Automatically shuts off when water is empty and signals the need for a refill via indicator light. Backed by the manufacturers 1-year limited warranty.