February 7, 2008 4:00 AM PST
This copper bracelet from the 1930s might normally be cleaned with a commercial jewelry cleaner containing noxious chemicals. Instead, this red steam machine will blast off the dirt. Sanitech, which has used similar processes to sanitize food-processing plants, demonstrated the process at the Green Manufacturing Expo.
The company has been around for a few decades but is now starting to market the eco-friendly aspect of its business. Steam can be used to clean all sorts of industrial plants and also could be used at home for bathrooms and kitchens.
Photo by Elsa Wenzel/CNET Networks
