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 Juul, SMOK, elfbar: The real problem with vaping e cigarettes Vox 5 Vaping Facts You Need to Know Johns Hopkins Medicine An updated overview of e cigarette impact on human health Respiratory Research Springer Nature Link While vaping is not risk free, it is less harmful than tobacco Our World in Data