Some e cigarettes deliver a puff of carcinogens Formaldehyde levels in e cigarettes were previously 'underestimated', researchers find The Pharmaceutical Journal Formaldehyde exposure from 3 e cigarette formats tested well below WHO quality guidelines EurekAlert! Opinion The Formaldehyde in Your E Cigs The New York Times Teens who vape could be exposed to the same toxic chemical preserving these two creatures: formaldehyde. #TheRealCost #Vape #Vaping #Ecigs #Ecig E Cigarettes and Secondhand Aerosols Smoke Free At Home NM