Vape Residue May Harm Unborn Babies' Immune Systems Respiratory Therapy Dangers of drinking, smoking, vaping while pregnant UNM Health Blog Albuquerque, New Mexico Secondhand smoke and aerosol 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 Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center