More middle and high schoolers are getting exposed to secondhand vape aerosols, study indicates The Boston Globe 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% Secondhand Vape Exposure: Effects, Who's at Risk, and More Second hand vape smoke linked to more asthma symptoms in kids