Secondhand e cigarette vape smoke exposure increased in last 4 years, contain harmful toxins: JAMA Network study ABC7 Chicago Parents using e cigs expose kids to dangerous secondhand vapor Futurity Thirdhand Smoke Resource Center Protecting Californians Secondhand Smoke and Electronic Cigarette Aerosols US EPA 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