Effectively relieve dry nose, throat lips and itchy skin with the virtually silent Dual Mist Humidifier with ION exchange filter. Will help you breathe easier and sleep more comfortably. This ultrasonic humidifier disperses warm or cool mist. A split nozzle for bi-directional mist for wider coverage. Sleek design with easy to use control knobs. Large, transparent blue water tank with easy-carrying handle. ION exchange filter demineralizes and treats water to reduce scale-forming calcium and magnesium from hard water. This prolongs the life of the ultrasonic generator and prevents white dust particles to deposit into the air. Features and Functions · Dual function: Warm and Cool mist · ION exchange filter · Ultrasonic generator · Humidity output: 400cc/hour · Designed for rooms up to 500 sq. ft. · Split nozzles: 360° adjustable direction · 4.0L water tank capacity · Overheat protection · Super quiet operation · Energy efficient · Cleaning brush included · ETL INSTRUCTIONS MANUAL Specifications | Input voltage | 120V / 60Hz | Power consumption | Warm mist | 80W | Cool mist | 30W | Coverage | up to 500 sq. ft. | Water tank capacity | 4.0L | Ultrasonic frequency | 1.7MHz | Droplet size | 5-10 microns | Humidity output | Warm mist | 400 ml | Cool mist | 330 ml | Max humidification time (on High) | Warm mist | 10 hrs | Cool mist | 12 hrs | Dimensions (W x D x H) inches | 13.2 x 5.3 x 12.4 in. | Net weight | 7.5 lbs | Power cord length | 5.9 ft | |