"The Ultrasonic Humidifier with Fragrance Diffuser has an elegant design and whisper quiet operation. This humidifier may help you breathe easier and sleep more comfortably. It provides year-round relief from the drying effects of ACs and Heaters. The Ultrasonic Humidifier with Fragrance Diffuser is equipped with a high humidity output with stepless control dials. It also features dry protection as well as a water refill indicator. Features and Functions: Cool mist (ultrasonic technology) Fragrance diffuser Stepless mist control dial Night light with independent switch High humidity output Silent operation Adjustable mist intensity Auto shut-off protection (ultrasonic generator only) 2.3 liters tank capacity Designed for rooms up to 450 sq. ft. ETL certified adjustable mist intensity Materials: Plastic Dimensions: 7.52""""L x 7.52""""W x 14.96""""H Weight: 2.04lbs"