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 Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Secondhand Vape Exposure: Effects, Who's at Risk, and More Second hand Vape Vs Secondhand Smoke Project Filter Secondhand Vape Vaping poses lower secondhand risk than Is Secondhand Vaping Harmful To Your Health? Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times