Cool mist ultrasonic technology?? high humidity output?? silent operation</br>Moisture output=2.3-galllon/day?? designed for rooms up to 500 square ft</br>Pilot light and water refill indicator?? auto shut-off protection to the ultrasonic generator only?? fan will continue to run</br>Convenient carrying handle?? Easy refill plug with no-drip feature</br>No-slip feet?? etl certified</br></br>Product Description</br></br>Spt su-2020 ultrasonic humidifier is whisper quiet - will help you breath better and sleep more comfortably. High humidity output with steeples control. Features dry protection and water refill indicator. Large 2-gallon water tank reduces hassle of constant refill. Produces up to 2.3 gallons of moisture per day</br><br/>http://www.amazon.com/gp/product/B006MW7IM8