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 Vape Smoke Bad For You? Learn How to Avoid its Side Effects Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Health Effects from Secondhand Exposure to E Cigarettes: A Systematic Review of Peer Reviewed Articles from 20042024