The most common way to use essential oils is to simply diffuse them in the air, so if you’re looking for an easy way to enjoy the benefits of aromatherapy, a diffuser is all you need. But if you’re interested in a more therapeutic approach to aroma or if you want to use your oils topically, a traditional oil burner provides a convenient heat source for therapeutic applications also but does not have the ultrasonic technology in most oil diffusers.