Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice Tobacco Smoke, Vaping, and Asthma AAFA.org Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA Differing Opinions About Second Hand Vape Exposure Vaping Post Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN E Cig Vapor Or Secondhand Smoke: Which Is Worse For You? YouTube