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 Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Is Secondhand Vaping Harmful To Your Health? Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times Thirdhand Smoke Resource Center Protecting Californians