Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM In secondhand vape, scientists smell risk Health cherokeephoenix.org Tobacco Smoke, Vaping, and Asthma AAFA.org Effects Of Second Hand Vape Smoke Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use Secondhand Vape Exposure May Be Risky for Asthmatic Teens UCT Lung Institute