Vapes Clouds Contain Absolutely Horrifying Chemicals, Scientists Find 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 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 WARNING FOR AND Illegal disposable e cigarettes (vapes) may be more dangerous than traditional cigarettes, according to new research from UC Davis. The study found hazardous levels of toxic heavy metals