Nicotine Vapes: the Chemicals They Contain, What They Can Do to You Business Insider Vaping harmless. Chemicals like formaldehyde, arsenic, lead, chromium, and nickel are found in vape aerosol. They damage lungs. They harm developing brains. They raise cancer risks. Protect Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times Is Formaldehyde Inhaled When Vaping Formaldehyde In E Cigarettes Sale Online Is Formaldehyde In Vapes Dangerous Australia Hidden Formaldehyde in E Cigarette Aerosols New England Journal of Medicine Bootleg marijuana vapes produce vapor tainted with formaldehyde, tests show