Pure Air Essentials Works Cool Mist Luxury Ultrasonic Humidifier helps to alleviate dry skin, maintain moisture in the air, and allows for better sleep alleviating dry nasal passages. More than 1-gallon capacity, yet compact design takes up minimal space and weighs just over 2 pounds. Lasts up to 45 hours on low setting.Additional Features:? Timer settings: Set for 2, 4, and 8 hours or for continuous operation? Sleep mode: Turns off night light and button LED light for relaxing sleep? Hinged carry handle: Convenient for easy filling and carrying of water tank