SU-2000 -Ultrasonic (no heat) humidity -High humidity output -Silent operation -Water level indicator -Boil dry protection -Dimensions: 12.75”H x 9”W x 12.75”D Whisper quiet – will help you breath better and sleep more comfortably. High humidity output with stepless control. Features dry protection and water refill alarm. Produces up to 7 liters of moisture per day.