While vaping is not risk free, it is less harmful than tobacco Our World in Data Health impacts of electronic cigarettes ANU National Centre for Epidemiology and Population Health Vaping has become common, but it's important to know what you're inhaling. Many e cigarettes contain nicotine, heavy metals like nickel and lead, and chemicals that can harm your lungs and overall health. 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. HealthMatch Vaping may be safer than cigarettes, but it's not safe Ban on vaping: reality check or turf war? RTD