Does Vaping Cause Secondhand Smoke? Juul study shows secondhand vaping emissions are less toxic than cigarette smoke Teen Health Info : Vaping everything you need to know Thirdhand Smoke Resource Center Protecting Californians Does Vaping Cause Second Hand Smoke V2 Cigs UK 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