While vaping is not risk free, it is less harmful than tobacco Our World in Data 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 Are There Harmless Vapes Not just water vapor: why e cigarettes are so dangerous PUBLIC HEALTH VAPES ARE FAR FROM HARMLESS. The Carnivore Bar Are Disposable Vapes Safe? EDGE Vaping What Does Vaping Do to Your Lungs? Johns Hopkins Medicine