What's in a cigarette? Some reports state that these new, flavored smoking devices are less harmful than tobacco cigarettes but how safe is vaping? In this third part of a four part series, China Daily examines the Tobacco Smoke, Vaping, and Asthma AAFA.org What Does Vaping Do to Your Lungs? Johns Hopkins Medicine How to Switch from Smoking to Vaping About E Cigarettes (Vapes) Smoking and Tobacco Use CDC