Secondhand Vape Exposure: Effects, Who's at Risk, and More How Smoking vs Vaping Affects Your Lungs You Must See This ! ! Why Youth Vape Smoking and Tobacco Use CDC 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 Should I Be Concerned About Secondhand Vaping? Which Smoking Habit Puts You Most at Risk?