Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC Secondhand vape plumes could form lung damaging radicals American Chemical Society Secondhand exposure from vaping marijuana: Concentrations, emissions, and exposures determined using both research grade and low cost monitors ScienceDirect 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