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 Full article: Cognitive and Affective Responses to the U.S. FDA E Cigarette Addiction Warning and Advertisements among Young Adults in California: Product Design, Imagery, and Use Potential health effects of electronic cigarettes: A systematic review of case reports ScienceDirect Disposable e cigarettes more toxic than traditional cigarettes EurekAlert!