A technician is orienting a student at the ultrasonic cleaner and is asked what actually removes the soil from the instruments. What is the correct answer?

Giải thích

High-frequency sound waves create low-pressure zones where tiny bubbles form and then collapse, and the energy released by that implosion dislodges fine soil from crevices, box locks, and serrations. Thermal disinfection and spray-jet impingement are mechanisms of washer-disinfectors, not ultrasonic units. Detergent assists cavitation but is not itself the cleaning action.