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 Chemicals in e cigarettes mix together to form new, unexpectedly toxic compounds EurekAlert! How Does Vaping Affect You? Short & Long Term Effects Explained The rise of nicotine analogues in vaping products The Lancet Respiratory Medicine The Truth about Vaping