Opinion The Formaldehyde in Your E Cigs The New York Times Daily exposure to formaldehyde and acetaldehyde and potential health risk associated with use of high and low nicotine e liquid concentrations Scientific Reports While humidifiers release only HO, vapes release formaldehyde, lead, arsenic, and more. Don't be fooledvape clouds carry toxic chemicals that can seriously harm your lungs. NOT (Not on Tobacco) is a free Don't be fooled by the smoke or the flavor. Vapes and cigarettes both contain toxic chemicals that can harm your body. #BeSafeDontVape #TobaccoFreeGeneration