Audiologists rely on the use of ultrasonic machines to clean or disinfectobjects that can be immersed in a liquid solution. Items to be cleaned are placed in the solution residing in the ultrasonic tank. The tank is then turned on to activate the ultrasonic cleaning mechanism. Ultrasonic waves cavitate the solution, creating the solution’s scrubbing action and giving it the ability to clean debris from surfaces and crevices.
A variety of ultrasonic machines are commercially available, each varying slightly in design and price. In general, as the quality and feature offerings of the unit increase, so will the product price. Every ultrasonic machine will ultimately clean or disinfect objects; the choice ends up being a matter of preference although recognizing the difference between several popular models is useful in making an informed decision. For example, GemOro offers a wide range of ultrasonic machines through Oaktree Products including the following four popular models: 1) Sparkle Spa (item #1780), 2) Ultrasonic Cleaner (item #1785), 3) Heated Ultrasonic Cleaner (item #1787), and 4) the new Sparkle Spa Pro (item #1790). Each model is equipped with an automatic shut off feature and mainly differ as a function of tank size along with a few other bells and whistles. For example, the tank capacity of the Sparkle Spa (#1780) is 16 oz (1 pint) whereas the GemOro Ultrasonic Cleaner (#1785) and Heated Ultrasonic Cleaner (#1787) models maintain 1.2 quart (~38.4 oz) and 2.6 quart (~84 oz) capacities respectively. The 25 oz tank capacity of the newest Sparkle Spa Pro (#1790) is larger than the original Sparkle Spa but smaller than the other two mentioned models.
In terms of features, the Sparkle Spa (#1780) is essentially a one button push-to-start model that provides a 3 minutes (180 second) cleaning cycle that will automatically shut off when the cycle is complete. If additional cleaning is needed, it will be necessary to push the ON button again to start another three minute cycle. In contrast, the other three models are all equipped with digital timers that provide a menu choice of five cleaning cycles of either 90, 180, 280, 380, or 480 seconds. As the name suggests, the Heated Ultrasonic Cleaner (#1787) is unique from all the other models in that it has a digital control heater that enables users to warm up the ultrasonic solution residing in the tank to a maximum temperature of 149 degrees Farenheit (65C). Heated solution will enhance the utrasonic’s cleaning ability. A popular solution used in the hearing industry is Audiologist’s Choice Ultrasonic Cleaner.