A small study done by The Center for Tobacco Control Research and Education at The University of California, San Francisco, "suggests that e-cigarettes don't actually help people to quit smoking." However, of the 949 smokers in the study, only 88 used e-cigarettes, causing the study's researchers to "admit that their findings should be viewed with some caution."
World Science reports "They also found that e-cigarette use was more commmon among women, younger adults and people with less education." Last year, the US Centers for Disease Control reported e-cigarette use more than doubled among U.S. middle and high school students from 2011-2012. The lack of solid research, potential youth market, and abundance of caution have had anti-tobacco activists and researchers pushing for a ban on advertising of e-cigarettes.
NPR has a recently story about "vaping" (using e-cigarettes) indoors and in the workplace.
If you smoke, have you been able to cut back your smoking or quit thanks to electronic cigarettes? If you do not smoke, does it bother you that others use e-cigarettes indoors?
Have you ever been around one when you didn't know it until later? They don't smell at all like cigarettes.
If the person inhales and holds it, nothing much is exhaled at all.
If e-cigs are to be banned, I would say perfumes and colognes should go with them.