Global youth vaping and respiratory health: epidemiology, interventions, and policies npj Primary Care Respiratory Medicine 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. About E Cigarettes (Vapes) Smoking and Tobacco Use CDC Lung cancer risks persist with e cigarette use after quitting tobacco smoking E cigarettes contain hazardous substances, addictive and harmful e Cigarettes Affect Oral Health and Ways to Minimise the Side Effects