GreenAir AromaMister Ultrasonic Diffuser is an efficient machine that can atomize a mix of essential oils and water up to 1000 square feet using the preferred ultrasonic technology to create an extra fine oil and vapour mist. Includes whimsical rotating LED lights (Color Rotating / Fixed / Night Light ). Easy to power ON and OFF. 120mL capacity lasts up to 4 hours. Dimensions 5.5” x 5.5” x 7”