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% Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek Second hand vape smoke linked to more asthma symptoms in kids Second hand nicotine vaping exposure raises risk for bronchitis, breathing problems UPI.com