Vaping Produces Far Less Second Hand Nicotine Than Smoking Respiratory Therapy 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 What We Know About Vaping Smokefree Effects of Secondhand Smoke: Dangers, Prevention, and More Secondhand Smoke Vermont Department of Health