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The National Institutes of Health and Dartmouth College collaborated on the following animation that demonstrates how a typical by-pass design chemical fume hood works. The animation is narrated in English and subtitled in the languages of the United Nations, with the addition of Dutch and German. This animation is part of a larger project to develop an internationally standardized biomedical laboratory safety training program. Additional animation projects are under development including the proper use of an autoclave and a biological safety cabinet.