Is Secondhand Vaping Harmful To Your Health? 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 Is 2nd Hand Vape Smoke Bad Is There 2nd Hand Smoke From Vapes Covid 19 Secondhand exposure from vaping marijuana: Concentrations, emissions, and exposures determined using both research grade and low cost monitors ScienceDirect Secondhand vape plumes could form lung damaging radicals American Chemical Society Secondhand Smoke Vermont Department of Health