Is Formaldehyde Contained in Vapes? 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 E cigarettes emit very high formaldehyde levels only in conditions that are aversive to users: A replication study under verified realistic use conditions ScienceDirect Daily exposure to formaldehyde and acetaldehyde and potential health risk associated with use of high and low nicotine e liquid concentrations Scientific Reports E cigarette vapor has cancer causing chemical formaldehyde CBS News