All about vapes what's in them, how do they work, and more Philip Morris International Vaping Safety, Smoking, Dangers, Pros, Cons, Debate, E cigarettes, & Tobacco Britannica Disposable ecigs expose users to much higher levels of toxic metals than earlier generations of ecigs or cigarettes Stanton Glantz blog 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