Vaping toolkit 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. Baltimore County Health Department Warns of Harmful Vaping Products The Eye of the Bluebird Secondhand smoke and aerosol Vaping vs Smoking Vaping Less Harmful? Vape Direct What Does Vaping Do to Your Lungs? Johns Hopkins Medicine