Should Vaping Be Banned? The Atlantic Juul study shows secondhand vaping emissions are less toxic than cigarette smoke Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Have you heard of Third Hand Smoke , When most people think about the risks of smoking, they picture first or second hand smokethe smoke you inhale or breathe when someone lights up near you. But Secondhand vape exposure: Risks and side effects What You Need to Know About Smoking and Lung Cancer