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 aerosol It's important to protect children from cigarette smoke, and it's just as important to do the same with vaping. Secondhand vape smoke aerosol isn't harmless It contains tiny particles that can While vaping is not risk free, it is less harmful than tobacco Our World in Data Juul study shows secondhand vaping emissions are less toxic than cigarette smoke