How have e cigarettes changed over time? Population Based Disease Odds for E Cigarettes and Dual Use versus Cigarettes NEJM Evidence Compare E Cigarette and Vape Starter Kits SMOKO E Cigarettes E Cigarette Use Among Youth Smoking and Tobacco Use CDC 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 E Cigarettes and Vaping: Are They Really Safe?