Contact: Dr. Tobias Schripp
tobias.schripp@wki.fraunhofer.de
49-531-215-5249
Fraunhofer-Gesellschaft
Caption: E-cigarettes come in many different guises, yet they all have one thing in common: they only emit vapor when switched on.
Credit: © Fraunhofer WKI
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Related news release: Putting electronic cigarettes to the test