WHAT'S REALLY INSIDE YOUR VAPE? You wouldn't drink paint thinner or eat car battery fluid, right? But you might be inhaling their ingredients every time you vape! E cigarettes contain toxic chemicals Some e cigarettes deliver a puff of carcinogens Daily exposure to formaldehyde and acetaldehyde and potential health risk associated with use of high and low nicotine e liquid concentrations Scientific Reports Formaldehyde exposure from 3 e cigarette formats tested well below WHO quality guidelines EurekAlert! Formaldehyde levels in e cigarettes were previously 'underestimated', researchers find The Pharmaceutical Journal