This is the ultrasonic humidifier that hydrates a living space with cool mist while emitting a fragrant scent. The humidifier distributes cool mist that evaporates once it is blown into the air, improving air moisture without dampening surroundings. Intended for rooms up to 426' sq., the unit has three mist settings and a 188-oz. water tank that allows it to run for up to 70 consecutive hours before requiring a refill. Its features include an aromatherapy tray for essential oils, built-in night light, and an automatic shut-off. Essential oils not included. AC plug. For rooms up to 426' sq. 21" H x 7" Diameter. (8 lbs.)