Teen Vaping: What Parents Can Do Children's Hospital Colorado E cigarettes: 'cancer risk close to zero' Bhekisisa Did you knowmany people think vaping is less harmful than smoking? While it's true that e cigarette aerosol doesn't include all the contaminants in tobacco smoke, it still isn't safe. Most e cigarettes deliver E cigarette : 22 % des souris testes ont contract un cancer du poumon avec le vapotage Les vapoteurs dveloppent les mmes mutations gntiques lies au cancer que les fumeurs