Greenair's Kids Aroma Oil Diffuser and Humidifier unites ultrasonic innovation with a playful design into an essential oil diffuser and/or humidifier. This adorable Duck-shaped diffuser is BPA-free and utilizes high-frequency ultrasonic and electrical vibrations to create an ultra-fine aromatherapy mist. Non-heat to keep the precious essential oil properties intact for holistic usage. GreenAir's Kids Aroma Diffuser goes into a kids room or with your family when you travel. There are 2 water bottle adapters for extended run time. The Kids Diffuser delivers instant healthful aromatherapy benefits by simply adding water and oil to the base and turning it on.