Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center Children and hospital patients deserve protection from second hand smoke. Our plans will make playgrounds and areas outside schools and hospitals smoke free, as well as introducing new vape free places. Have your say here: Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Tobacco Smoke, Vaping, and Asthma AAFA.org In secondhand vape, scientists smell risk American Heart Association