Is JUUL More Harmful Than Cigarettes? Understand the Risks 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. The Promise of Vaping and the Rise of Juul The New Yorker Do Juul Pods Contain Formaldehyde FDA reverses order taking Juul vaping products off the market in US, opens door to possible authorization Do Juul Pods Contain Formaldehyde FDA orders Juul e cigarettes off the market over safety concerns Formaldehyde in Electronic Cigarette Liquid (Aerosolized Liquid) Jenna L. Ruggiero, Lindsey M. Voller, Javed A. Shaik, Sara Hylwa, 2022