If you enjoy essential oils, you'll love this diffuser! This Unique Aromatherapy Diffuser is wonderful for both adding humidity to the air and dispersing your desired scent of essential oil to enhance your room's atmosphere! The ultrasonic transducer transforms water and essential oil into a cool mist. This diffuser also includes output adjustment buttons for a low or high mist and has a safe auto off feature when the water runs out. This diffuser has a whisper quiet operating system - so it can be used both at night and during the day. This Unique Aromatherapy Diffuser offers a lighting feature to create a relaxing therapeutic mood, or can be used as a night light!