In control experiments, the researchers introduced a plume consisting of background air with a low concentration of CO 2
Everard CD, Silveira ML, Kimmel HL, Marshall D, Blanco C, Compton WM
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Such policies will maintain current standards for clean indoor air, reduce the potential for renormalization of tobacco product use, and prevent involuntary exposure to nicotine and other aerosolized emissions from e-cigarettes (Ingebrethsen et al
The dual use of electronic cigarettes and combustible products, such as cigarettes or cigars, is not recommended, for it could increase the health risks
I figured I might as well give this a try after reading Eulenburg's review