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Old 10-10-2009, 06:35 PM   #24 (permalink)
instarx
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Join Date: Jul 2008
Location: NC
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I used to do nuclear clean-room filter testing and duct tracing using smoke generators. Google DOP or dioctyl phthalate smoke generators. You can buy them or make them. Some are as small as a tin can. It will take some compressed air and a small heat source. They produce tons of smoke and it is harmless stuff. It is theatrical smoke and is what you've seen being produced in wind tunnel tests.
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