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. Is Second Hand Vapour Harmful? Facts for Bystanders Secondhand smoke and secondhand aerosol Effect of second hand fumes from vaping on young lungs Parents using e cigs expose kids to dangerous secondhand vapor Futurity Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice