Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC Health Effects of Maternal Exposure to Thirdhand Chemical Residue from Vape Aerosols Persist Long After Infancy Thirdhand Smoke Resource Center Tobacco smoking and vaping in pregnancy and neonatal outcomes: results from a UK cohort study Second hand smoke poses significant risks not only to adults but also to unborn babies. Eliminating exposure to second hand smoke during pregnancy is essential for the health of both mother and child, as Hidden Dangers of Secondhand Vaping Emory Health Digest Vape Residue May Harm Unborn Babies' Immune Systems Respiratory Therapy