Secondhand vape plumes could form lung damaging radicals American Chemical Society Secondhand Smoke vs Vape: What the Science Says What is Thirdhand Smoke? Thirdhand Smoke Resource Center Does Vaping Cause Secondhand Smoke? Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek 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.