Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek Avoiding Tobacco Smoke and E Cigarette Aerosol Is a Key Part of Asthma Management Asthma and Allergy Foundation of America Is Second Hand Vapor from E Cigarettes Dangerous? [Infographic] Techno FAQ Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC Focused on the Facts: Secondhand Marijuana Smoke American Nonsmokers' Rights Foundation no smoke.org