Number of children using e cigarettes is surging, WHO reports Young Post Club 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 Vaping releases toxic chemicals, including heavy metals, as well as ultrafine particles that go deep into the lungs. These increase the risk of heart and lung disorders. Chemical exposure Vaping versus smoking While vaping is not risk free, it is less harmful than tobacco Our World in Data