Has dry air made your home uncomfortable? With the Everlasting Comfort Cool Mist Humidifier (6L), you can say goodbye to dry skin, nasal irritation, and scratchy throats once and for all. With a 360-degree rotating mist nozzle, our ultrasonic humidifier adds much-needed moisture to the air to transform any room from unbearably dry to perfectly comfy. Large 6L (1.6 Gal) water tank covers rooms up to 500 square feet, lasting up to 50 hours before needing to be refilled. The cost-effective, filterless design eliminates the need for replacements, unlike other cool mist humidifiers. Great for sleeping, our air humidifier has a whisper-quiet operation, built-in LED night light, and auto shut off function for added safety. Optional essential oil tray transforms this humidifier for a large room into a fragrance diffuser for an optimal aromatherapy experience. Works great as a baby humidifier and vaporizer for the bedroom.