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 Does Vaping Cause Lung Cancer? E cigarettes and Vaping Commercial Tobacco Use MN Dept. of Health Disposable E Cigarettes More Toxic Than Traditional Cigarettes UC Davis How does the disposable vape ban work, and how harmful is vaping? Vaping Devices (Electronic Cigarettes) DrugFacts National Institute on Drug Abuse (NIDA)