Secondhand smoke damages lungs, MRIs show EurekAlert! Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association How can I protect my child from thirdhand smoke in homes? Thirdhand Smoke Resource Center Does Vaping Cause Secondhand Smoke? Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN