E cigarettes and Vaping Commercial Tobacco Use MN Dept. of Health Tobacco Smoke, Vaping, and Asthma AAFA.org 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. E cigarettes can result in 'Popcorn Lung' Composition of electronic cigarette aerosol Wikipedia Understanding the Hidden Health Risks of Vaping UL Research Institutes