Daily exposure to formaldehyde and acetaldehyde and potential health risk associated with use of high and low nicotine e liquid concentrations Scientific Reports Some e cigarettes deliver a puff of carcinogens E cigarettes 'expose smokers to more formaldehyde than regular tobacco' South China Morning Post E Cigarettes and Secondhand Aerosols Smoke Free At Home NM When you vape, you may be creating and inhaling formaldehyde. Talk to your kids about the dangers of vaping.