What Does Vaping Do to Your Lungs? Johns Hopkins Medicine From flavor bans to secondhand aerosol exposure, there's a lot people don't realize about how vaping impacts health, policy, and safety. Flavor restrictions can change tobacco use patterns, influence black market Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London