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. Secondhand vape plumes could form lung damaging radicals American Chemical Society Second Hand Vaping Vape Smoke Free Secondhand Smoke vs Vape: What the Science Says Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice