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% Should I Be Concerned About Secondhand Vaping? Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA Second hand nicotine vaping exposure raises risk for bronchitis, breathing problems UPI.com Tobacco Smoke, Vaping, and Asthma AAFA.org