Create a comfortable, moisture-rich ambience in your home or office with the Rosewill RHHD-14001 Ultrasonic Humidifier. Maintaining proper humidity levels helps reduce static electricity, and keeps throat and nasal passages hydrated. With a 5L water tank, this humidifier produces a fine, soothing mist, while the 360-degree dual nozzle mist outlet with variable mist control lets you control the mist to your personalized comfort. The ultrasonic technology allows for quiet operation that won't disturb while you work or sleep. A soft-glow LED light makes operation easy at night. This humidifier also features auto-shutoff when the tank is empty, a built-in handle for easy carrying, and a filter-less design for easy maintenance and cleanup. Note: Recommend to use distilled water if you live in hard water district.