Secondhand Smoke Vermont Department of Health 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 Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Can you get second hand smoke from vape? Vaping Post Secondhand Smoke vs Vape: What the Science Says