The Tribest Humio Ultrasonic Cool Mist humidifier is designed with soothing lighted effects, as it rotates from shades of red, blue and green. This includes a rotating mist outlet, removable neck and half-gallon water tank with cleaning. Soothing lighted effects rotate from shades of red, blue and green Optional aroma oil compartment Covers up to 100 square feet Consumes less power than a lightbulb Provides up to 10 hours of operation per half-gallon Approximately 2-liters (0.5-gallon) tank Materials: Plastic, electric Brand: Tribest Type: Humidifier Style: Modern, Contemporary, compact Model: HU-1020 Dimensions: 14 inches high x 8 inches wide x 8 inches deep