The second-hand effects of vaping are generally considered by many people to be minor to non-existent. However with the dangers of second-hand smoke being well documented as a threat to other’s health, it does justify the question and research to find out if electronic cigarettes are safe to use indoors.
A recent study by Consulting for Health, Air, Nature, & A Greener Environment, LLC (CHANGE) and Center for Air Resources Science & Engineering (CARES), Clarkson University, the effects of second-hand vapor was found to have “No Significant Risk” to harm other people. The study compared VOCs, carbonyls, PAHs, Nicotine, TSNAs and Glucols levels in the air of rooms filled with 4 different kinds of vapor from e cigarettes and compared the results to samples of air taken from rooms filled with cigarette smoke.
Of course the room filled with tobacco smoke was deemed a significant risk to others, but the room filled with ecig vapor did not have enough exposure to risk harm to others.
This is another positive result supporting the popular public opinion that using electronic cigarettes is considerably less dangerous for you and others, when compared to smoking cigarettes.
The long term effects of electronic cigarette vapor has not been fully researched, however there are no reports that I know of that suggest that the second-hand vapor from an electronic cigarette is anywhere close to dangerous to anyone. So, are electronic cigarettes safe?