Secondhand smoke and secondhand aerosol Is Second Hand Vapor from E Cigarettes Dangerous Infographic Infographics Medicpresents.com 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 Effects from Secondhand Exposure to E Cigarettes: A Systematic Review of Peer Reviewed Articles from 20042024 Sleeping baby safety tip: Keep baby's environment smoke and vape free. Secondhand smoke in areas where a baby sleeps or spends time, like home or the car, increases the risk of health problems.