Vapes are commonly used as a way to stop smoking but it could have a huge unexpected risk Juul study shows secondhand vaping emissions are less toxic than cigarette smoke When someone vapes around others they expose them to 'second hand aerosol'. But what happens to that aerosol then? Does it disappear or is it like cigarette smoke and stays around, sticking to Health Risks of E Cigarettes and Vaping American Lung Association Tobacco Smoke, Vaping, and Asthma AAFA.org