Ultrasonic Aroma diffuser utilizes electronic frequencies to cause a small disk under the surface of a liquid ( usually water ) to vibrate at a very fast rate . These ultrasonic vibrations break the essential oil into tiny microparticles ， dispersing the oil in a fine mist . These tin particles are more easily absorbed by the lungs for a greater therapeutic effect on the body ， mind ， and sprit.

Aroma diffusion creates a lovely mist that helps to humidify the air and features the gentle sound of trickling water ， only a small fraction of the mist is actually essential oil ( there are typically only 5-10 drops of essential oil for several quarts of water ) ， and it depends solely on the air current already in the room to disperse the mist throughout the room . For those who desire only a small amount of oil to be diffused in a room ， this type of diffuser not only works well but can be very beautiful as well . Our most popular humidifying diffuser is the Whisper because the oil never touches the moving parts ，  it is easy to clean ， and it has timer settings that allow the diffuser to run off and on for up to 6 hours.