E cigarettes contain hazardous substances, addictive and harmful Vaping vs. Cigarettes: Everything I Learned In 2 Weeks Of Research Blog China Daily Hong Kong 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 The Dangers of Vaping How E Cigarettes Affect Student Health E cigarettes should be offered to smokers, say doctors BBC News Vaping Safety, Smoking, Dangers, Pros, Cons, Debate, E cigarettes, & Tobacco Britannica