Is E Cig Vapour Harmful to My Non Vaping Friends? Dinner Lady Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center E Cigarette and Vaping Illness 700 Children's Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Study finds secondhand smoke may be source of lead exposure in children, adolescents Vital Record Second hand vape smoke linked to more asthma symptoms in kids