Vapes don't produce harmless water vapor. They can contain addictive nicotine, cancer causing chemicals like acetaldehyde and formaldehyde, and heavy metals that don't belong in your body. Live Vape Free is a text Formaldehyde In Vapes? Exposing Another Chemical Scare When you vape, you may be creating and inhaling formaldehyde. Talk to your kids about the dangers of vaping. Study Finds E Cigs Produce More Formaldehyde Than Regular Cigarettes