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 2nd Hand Vape Smoke Effects Does cannabis create thirdhand smoke? We protect kids from cigarette smokelet's do the same with vaping. Secondhand vape isn't harmless, here is what parents need to know: https: www.undo.org disease secondhand vape Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA