Secondhand Smoke Vermont Department of Health 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 Smoke and Electronic Cigarette Aerosol Resources US EPA What Are the Risks from Secondhand Vape Smoke? NVB Inc. E cigarettes and Vaping Commercial Tobacco Use MN Dept. of Health Secondhand smoke from cigarettes worse than vapes UPI.com