Psychiatry.org E Cigarettes and Vaping What Does Vaping Do to Your Lungs? Johns Hopkins Medicine What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Say no to vaping. 10 15 vape puffs are roughly equivalent to one cigarette. We want to encourage and support families to have open and engaging conversations with young people to When someone vapes around others they expose them to 'second hand aerosol'. But what happens to that aerosol then? Does it disappear or is it like cigarette smoke and stays around, sticking to