Just the Facts: Vaping SAFE Project Vapes don't produce harmless water vapor. They can contain addictive nicotine, cancer causing chemicals like acetaldehyde and formaldehyde, as well as heavy metals that don't belong in your body. Live Vape Free is Vaping and Electronic Cigarette (E Cigarette) Products Cattaraugus County Website Evidence update on the cancer risk of vaping e cigarettes: A systematic review Not just water vapor: why e cigarettes are so dangerous PUBLIC HEALTH INSIDER