Does Vaping Cause Lung Cancer? Minty vape flavors have high levels of banned carcinogen Futurity Vaping MouthHealthy Oral Health Information from the ADA Vaping really is THAT bad @LungAssociation says vaping isn't just inhaling harmless water vapor. Liquid in vapes often holds harmful drugs & chemicals, like nicotine, propylene glycol (found in antifreeze), carcinogens, acrolein ( Facts about Vaping can be very vaporous ScienceUpFirst