Thirdhand smoke' may last longer than you think, damage your health 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 What Does Vaping Do to Your Lungs? Johns Hopkins Medicine How Long Does Vape Smoke Stay in the Air? Have you ever breathed in secondhand vapor from a vape? What exactly are you inhaling? It turns out it's a lengthy list of chemicals. FULL STORY