Aromatherapy Diffuser in ultrasonic diffusers use high frequency sound waves to break essential oils down into micro-fine mist. This allows the aromatic molecules to vaporize and diffuse through the air. Ultrasonic diffusers are very popular because they are affordable, portable, and produce a fine mist. They work by using ultrasonic vibrations to break the essential oil into small pa... https://themediumblog.com/read-blog/158524