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 Vaping and Smoking While Pregnant: Risks, Effects and More Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA Vaping more effective than patches for pregnant women, study finds Dr Colin Mendelsohn In secondhand vape, scientists smell risk American Heart Association