Can I be Affected by Secondhand Vape Smoke? Secondhand Vape Plumes Could Form Lung damaging Radicals 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 vaping may pose risk to your kids: New study Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA