Grossiste Puff & Cigarette lectronique Stock Rel Greenvillage.fr Dans quels pays la cigarette lectronique est elle interdite ? 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 Vaping has become common, but it's important to know what you're inhaling. Many e cigarettes contain nicotine, heavy metals like nickel and lead, and chemicals that can harm your lungs and overall health.