The SPT- SU-2550W-Ultrasonic Humidifier with Fragrance Diffuser will always guarantee rich moisture laden air and fragrant aromas to help you sleep peacefully and breathe easily at night. This humidifier will deliver moisture rich air and aromatic scent with its fragrance diffuser. It features a 2.3 liter tank capacity and is designed for rooms up to 450 square feet. The fragrance diffuser will ensure your rooms always smell fresh and do not reek of bad odors and smells. The SPT-SU-2550W combats the drying effects of your air conditioner and heater. With its Ultrasonic technology, it operates quietly in the background and delivers a fine mist of moisture laden air while you sleep peacefully. The dimensions of the SPT-SU-2550W-Ultrasonic Humidifier are 7.52 x 7.52 x 14.96 inches and weighs 2.04 lbs.