Sunpentown SU-2081B Blue Digital Ultrasonic Humidifier with Hygrostat Sensor Type: Humidifier Negative Ion Output: Ionizer Humidification Capacity: 7.5 L per 24 hours Operates Room Size: 400 sq. ft. Water Tank: 2.45 L Power Consumption: 32W Rated Current: 120V / 60Hz Power Supply: 0.24A