Effect of second hand fumes from vaping on young lungs Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM Secondhand Smoke Vermont Department of Health 5 Vaping Facts You Need to Know Johns Hopkins Medicine 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.