Do Juul Pods Contain Formaldehyde FDA orders Juul e cigarettes off the market over safety concerns Is Formaldehyde in Vapes? FDA orders Juul to stop selling e cigarette products The Medical Minute: Hazards of juuling or vaping Penn State University DYK? Vaping coats lungs with potentially harmful chemicals. This can include chemicals such as: Diacetyl: This food additive, used to deepen e cigarette flavors, is known to damage small passageways in the lungs. Is Diacetyl In Juul Pods Have Formaldehyde Transitioning From JUUL Pods To Natural E Liquids: A Smoker's Is Diacetyl In Juul Pods Better