Daily exposure to formaldehyde and acetaldehyde and potential health risk associated with use of high and low nicotine e liquid concentrations Scientific Reports E cigarettes can emit formaldehyde at high levels under conditions that have been reported to be non averse to users Scientific Reports Do E Cigarettes Really Contain Ten Times the Carcinogens of Tobacco Cigarettes? Snopes.com Formaldehyde is used to preserve dead bodies. This same cancer causing chemical is also found in vape juices. Vaping may look harmless, but looks can be deceiving. A review of analytical techniques for the determination of e liquid and electronic cigarette aerosol composition ScienceDirect Selected Harmful and Potentially Harmful Constituents Levels in Commercial e Cigarettes Chemical Research in Toxicology