Your vape isn't leaching toxic metals Vapour.com Electronic Cigarettes, E Cigs, and E Liquids for Vaping Vapour Many students believe that vaping harmless, which is far from the truth. Vape pens can contain potentially harmful substances such as chemicals linked to lung disease, cancer causing chemicals, heavy metals such as What's Actually in Your Vape: A Complete Chemical Breakdown Disposable E Cigarettes More Toxic Than Traditional Cigarettes UC Davis