6. Throughout the cycle, the ultrasonic cleaner makes a high-pitch whirring sound, which is noticeable but not necessarily annoying. The cleaning solution will ripple as the ultrasonic waves blast through it. Sharpertek recommends “degassing” any solution each day by running the cleaner through a 5- to 10-minute cycle before submerging components in it. Submerging your hand into the solution during a cleaning cycle gives a mild tingling sensation, but use caution because the solution can be hot and you’re dealing with water and electricity. In other words, we don’t recommend sticking your hands in it.