What Does A JUUL Really Do To Your Body? Franciscan Health 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 Dangers of Vaping *Did you know that smoking 1 vape pod is the equivalent of smoking 1 pack of cigarettes. *Vape pods can have dangerous chemicals in them including formaldehyde, acetone and Juul news: Vape brand can continue selling its tobacco, menthol flavors of e cigarettes, FDA says ABC7 New York E Cigarettes Vaping with Juul & Other Electronic Cigarettes