Secondhand Smoke Social Media Message Library Tobacco Education Clearinghouse of California 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 Exposure to E Cigarettes Puts COPD Patients At Risk Respiratory Therapy Solving secondhand "vape smoke" at workand at home