The Dreo Humidifiers for Bedroom is a top fill 4L supersized cool mist humidifier designed for use in bedrooms. It features a timerless control, can be powered by battery or electricity, and has a coverage area of more than 215 sq ft. This sleek white humidifier is made of plastic, has a 1 gal tank capacity, and operates with a single speed setting. With features such as night light, adjustable humidity control, and automatic shut off, this tabletop humidifier is both portable and quiet, making it an ideal choice for improving indoor air quality in small to large-sized rooms.