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 Teen vaping linked with toxic lead exposure, study finds CNN 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 What's Actually in Your Vape: A Complete Chemical Breakdown