The DREO 4L Cool Mist Humidifier is a top-fill humidifier designed for large rooms, providing coverage for more than 215 sq ft. With a sleek white plastic design and glossy finish, this humidifier is perfect for the bedroom. It operates with an electrical power source at 120V and utilizes cool mist humidification method for efficient moisture delivery. The timerless feature ensures continuous operation for up to 36 hours, making it easy to use and maintain.