E Cigs and Second Hand Vaping: Dangers and Protections Social Media Just Breathe Indiana Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA Should I Be Concerned About Secondhand Vaping? 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% Breathing in someone else's smoke or vape isn't harmless. Secondhand smoke exposure can affect your lungs, brain, and overall health. Protect your families and yourself. Inhalar el humo o el vapor de