Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA 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. Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice Secondhand Vape Exposure: Effects, Who's at Risk, and More