Study uncovers the hidden dangers of secondhand vape exposure to children Can Vaping Cause Lung Cancer? Here's What We Know. Secondhand Smoke Vermont Department of Health 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 Sleeping baby safety tip: Keep baby's environment smoke and vape free. Secondhand smoke in areas where a baby sleeps or spends time, like home or the car, increases the risk of health problems. Does Vaping Cause Secondhand Smoke?