Vapes vs Cigarettes: Which One is More Deadly? Atlus Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs. 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. The Chemistry of Vaping ChemistryViews Comparison of Toxicities of Main Chemical Components of ENDS Vape with Download Scientific Diagram Vaping Produces a Chemical that Destroys Human Tissue, Research Shows Newsroom