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 Smoke and Electronic Cigarette Aerosol Resources US EPA 5 Vaping Facts You Need to Know Johns Hopkins Medicine Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA Does Vaping Cause Secondhand Smoke? Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice