doTERRA Aroma Ace with On Guard

Enjoy the convenience and flexibility of an advanced aromatherapy system. The Advanced Aromatherapy Essential Oil Diffuser (also called by doTERRA the Aroma-Ace Diffuser) is a powerful, compact, and easy to use Essential Oil Diffuser System for Aromatherapy. It has built in on/off timers and output volume control for easy adjustments. Made in the USA. The state of the art "cold diffusion" technology preserves the natural essence and complete therapeutic benefits of essential oils by effectively transforming them into a micro fine vapor without the use of heat or water.