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 Considre les consquences du vapotage Canada.ca Don't do vape, bro! A qualitative study of youth's and parents' reactions to e cigarette prevention advertisements ScienceDirect E cigarettes can emit formaldehyde at high levels under conditions that have been reported to be non averse to users Scientific Reports