Sitting somewhere when a cloud of cotton candy vapor washes over you? If you can smell the sweet scent of a vape, that's not a great sign. Secondhand Vape Exposure: Effects, Who's at Risk, and More According to a Centers for Disease Control and Prevention (CDC) study, 40% of U.S. adults believe that children's exposure to secondhand aerosol from e cigarettes causes only some or little harm, and 5% Ever wonder if VAPING has any secondhand smoke? Check out our myths and truth post to learn more. TLDR: Be courteous. Just because vape aerosol doesn't smell as bad as cigarette smoke, Smokefree DeKalb County DeKalb County Health Department