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 vaping: The latest vaping health risk CNET How secondhand smoke, thirdhand smoke & vaping affects kids E Cigarettes (Vapes) Smoking and Tobacco Use CDC