Hidden Formaldehyde in E Cigarette Aerosols New England Journal of Medicine What's really inside a vape? Many people think vaping is just flavored vapor, but the aerosol from e cigarettes can contain harmful substances that go straight into the lungs. According to the JUUL 'new technology' pods exhibit greater electrical power and nicotine output than previous devices Tobacco Control The Medical Minute: Hazards of juuling or vaping Penn State University Is JUUL More Harmful Than Cigarettes? Understand the Risks Do Juul Pods Contain Formaldehyde Vape, Juul, e cigarettes and the FDA: Everything you need to