Ultrasonic cleaners function by producing sound waves that are transmitted into the tank and cleaning solution these waves create millions of microscopic bubbles which collapse or lsquoimplodersquo releasing large amounts of energy which scrub the surface clean this process is called lsquocavitationrsquo these tiny bubbles create incredible cleaning results not only to the surface but by penetrating the finer detail and recesses in jewellery and small items to restore them to their forme