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 Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC Vape Residue May Harm Unborn Babies' Immune Systems Respiratory Therapy E cigarettes Beat Patches in Reducing Low Birthweight Risk Respiratory Therapy Second Hand Vaping Vape Smoke Free Vaping before, during and after pregnancy: leaflets and infographics ASH