Review on Ultrasonic Cleaner, Jewelry Cleaner Portable - 600Ml 50KHz Low Noise Ultrasonic Machine For Cleaning Eyeglasses, Ring, Jewelry, Watch Chains, Retainer, Razors, Dentures Combs (UTEN-Black) by Michael Lightfoot

Overall I am satisfied with this ultrasonic cleaner. I purchased this to clean a few odd items that are a pain otherwise. These include my glasses that have a monofilament wire to hold the lens in place, some airbrush guns, pocket knives and coffee machine parts. The good parts: It works well on my glasses, particularly to clean up this gunk that builds up between the frame and the lens. On the pocket knives, it seems to magically remove all the lint and other detritus that builds up in the recesses that are difficult to remove without pulling down the knife. This was the same story with a pod coffee machine cup that after a while was clogged up with coffee, and for a frothing nozzle (soak in hot water first).The airbrush nozzle wasn't quite so magical. It did remove some of the paint, but I ended up soaking it in paint stripper and hitting with a wire brush before it was cleaned to my satisfaction.My only complaint is that the reservoir is not removable. Not a huge deal, but it would be nice to be able to put it in the wash or sink for cleaning.