What is the value of an ultrasonic?

it feels like your getting shocked when you put your hand in it) 

Please don’t make a habit of putting you hands in the ultrasonic!
Back in the 1930s when ultrasonic cleaners where being developed the
manufacturers thought what a great idea for a bathtub. Well,
after hundreds where sold and used, a high percentage of those who
used them developed leukemia and bone marrow cancers. It seems the
ultrasonic waves will travel through your skin to the bone marrow,
which disrupts the marrow’s natural function triggering cancer. The
bathtubs where taken off the market. Ultrasonic cleaners are still
safe to use as long as you don’t put any part of your body (with
bones) into them.

Nanz Aalund
Associate Editor / Art Jewelry magazine
21027 Crossroads Circle / Waukesha WI 53187-1612
262.796.8776 ext.228