Ultrasonic Cleaner (1) Lowest back-repair rate (2) Safe (3) 3L,4L,5L,6L,10L,22L,33L and big ... equipment OEM. Ultrasonic Cleaner:(1) Lowest back-repair rate(2) Safe(3) 3L,4L,5L,6L,10L,22L,33L and big ... are mostly used warm,at about 50—65 °C (149 °F), however, in medical applications it is generally accepted that cleaning ...