What can not be achieved by brushing, steaming or soaking is effortless with the advanced BRANSON ultrasonic technique. High-frequency sound is passed through a cleaning fluid, giving rise to waves of alternate high and low pressure. Millions of microscopic low-pressure bubbles are created, which implode again almost immediately, releasing a force many times greater than that used in mechanical brushing. This accelerates the breakdown of dirt particles and repeatedly brings the fluid into active contact with the surface being cleaned. Heat accelerates the process even further. Models available include units with mechanical timer only , mechanical timer and heater unit and models with electronic heat control, digital timer and temperature monitor.