Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM 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 Vermont Department of Health Vaping Around Babies How Secondhand Vapor Smoke Can Harm Kids Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA