Nicotine Vapes: the Chemicals They Contain, What They Can Do to You Business Insider Formaldehyde In Vapes Is It A Concern? E LIQUIDS UK The Dangers Of Using A Fake Vape Riot E Liquid While humidifiers release only HO, vapes release formaldehyde, lead, arsenic, and more. Don't be fooledvape clouds carry toxic chemicals that can seriously harm your lungs. NOT (Not on Tobacco) is a free About E Cigarettes (Vapes) Smoking and Tobacco Use CDC What's in an E Cigarette? American Lung Association