E cigarettes: Facts, stats and regulations 5 Vaping Facts You Need to Know Johns Hopkins Medicine Vaping is on the rise. While e cigarettes don't contain tobacco, they may still contain many of the same toxic and cancer causing chemicals found in regular cigarettes. This includes: Acrolein (weed The safest vape is the one you never start. Flavoured vapes were designed to feel harmless: Candy taste. Fruit smell. Cool packaging. Viral aesthetics. But your lungs don't care about the flavour. Lung injuries from vaping have characteristic patterns on CT