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 Secondhand Smoke Vermont Department of Health Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals 5 Vaping Facts You Need to Know Johns Hopkins Medicine Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC Children at risk: Emory study uncovers the hidden dangers of secondhand vape exposure