FACT: Most e cigarette users also smoke cigarettes, a pattern known as dual use. This means the tobacco industry isn't helping people quit; it's sustaining addiction through another product. While the industry claims Tobacco Smoke, Vaping, and Asthma AAFA.org Complete Guide to Secondhand Vaping Devices Vape Direct Secondhand Exposure to E Cigarettes Puts COPD Patients At Risk Respiratory Therapy Secondhand Smoke E cigarette ads spread like second hand smoke on Twitter TheHealthSite.com