Secondhand Smoke Vermont Department of Health Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC 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. The Dangers of Secondhand & Thirdhand Smoke Exposure Secondhand Smoke Social Media Message Library Tobacco Education Clearinghouse of California Characteristics of second hand exposure to aerosols from e cigarettes: A literature review since 2010 ScienceDirect