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 Don't Take the Vape Formaldehyde E cigarettes almost always contain nicotine. Vaping can expose you and others around you to harmful chemicals, such as: E cigarette aerosol primarily contains acetaldehyde with other Download Scientific Diagram