The Sonoma Sunset Diffuser 140ml is a beautiful and elegant diffuser that can help to create a relaxing and peaceful atmosphere in your home. The diffuser holds 140ml of essential oil and uses ultrasonic waves to disperse a fine mist of the oil into the air, creating a soothing and aromatized ambiance, like a sunset in the Sonoma Valley. It’s easy to operate, can be placed in any room in your home or office and it’s perfect for unwinding and de-stressing after a long day.