What Does a Burnt Vape Look Like Inside? How Long Does Vape Smoke Stay in the Air? A viral simulation comparing the effects of smoking and vaping has reignited debate over the long term health risks of both habits. The demonstration visually shows how cigarette smoke leaves thick tar buildup PSA: Vaping indoors doesnt just vanish into thin air it leaves behind a sticky, oily residue that builds up on windows. If your glass looks hazy no matter how much you clean it, this might be why