Disposable vapes contain 'more toxic metals than 19 cigarette packs' E Cigarettes and Vaping PPAC Central Toxic metals in vapes may pose major health risks for youth, study finds National Globalnews.ca Vaping Harmless. Vape aerosol contains toxic chemicals like formaldehyde, arsenic, lead, chromium, and nickel. They damage lungs. They harm developing brains. They raise cancer risks. We Thank you UC Davis Health for providing these great infographics about the dangers of vapes and vape aerosols. Tag and share to get the word out! If you'd like copies of these Vaping, Panic, and Prohibition: Why the UC Davis Study Needs Context Cato at Liberty Blog