How Long Does Vape Smoke Stay in the Air? Guide 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 Fresh Air for Little Lungs Secondhand smoke and vape aerosol can stay in the air and on surfaces long after smoking or vaping stops. Choosing fresh air around your babyby stepping The Importance of Airflow When You Vape The Vape Mall Vaping could harm your lungs, even within days or weeks of doing it. Don't let vaping harm your health. How Long Does A Vape Last?