Illegal disposable e cigarettes more dangerous than cigarettes, study shows Fox News New study finds disposable vaping devices more toxic than traditional cigarettes Smokers 'Do Much Worse' With Coronavirus and Many Are Now Trying to Quit KQED Young adults don't know what's in nicotine products they vape They may look harmless and smell sweet but disposable vapes can release toxic metals at levels even worse than cigarettes. A UC Davis study found lead, nickel, and antimony inside UC Davis study: Disposable vapes may be more toxic than cigarettes