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 Secondhand Vape Exposure: Effects, Who's at Risk, and More Secondhand smoke and secondhand aerosol Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center