What's in an E Cigarette? American Lung Association Did you know: benzene, which is found in car exhaust; and heavy metals, such as nickel, tin, and lead can be in vape and secondhand vape! I learned something new. Get the Nickel Allergy: Causes, Mechanism & Treatment Soteri Skin Healthy Big Tobacco hides the truth, so here it is: vapes contain toxic chemicals with serious health risks, like: Nicotine an addictive poison, harmful to developing brains. Benzene a Macroscopic Metals The Real Cost Vaping: Myths and Realities* CYANOnline