Do Juul Pods Contain Formaldehyde It's not just vapor. Your vape could contain the same amount A tale of two Juul pods: China's counterfeits pose a threat to US New York Post Juul e cigarettes win FDA authorization, sources say JUUL 2 Mango Prefilled Pods 2 Pack E liquids.com Opinion: Juul ing anything but consequence free 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.