Second hand smoke is highly toxic. Here's what happens when pregnant women and their babies are exposed to second hand smoke. Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London A smoke and vape free environment is one of the simplest ways to help protect your baby's health. Exposure before and after birth can increase the risk of SIDS and other serious health Secondhand Vape Exposure: Effects, Who's at Risk, and More Secondhand Smoke Vermont Department of Health A smoke free and vape free environment during and after pregnancy is essential for your baby's safety. Learn more at SNHD.INFO SUID.