We have several ultrasonic cleaners in our warehouse in Snohomish. We use these cleaners when contents are contaminated with soot, dust, dirt, oil, rust, grease, fungus, lime scale, fingerprints or blood. Ultrasonic Cleaning performs best on hard materials such as metals, plastics, aluminum, and ceramics. We can even clean electrical items such as cables, rods, and wires. They are frequently used to clean items damaged in a fire such as china, pots, pans, glasses, eyewear, jewelry and metal window blinds.