Vaping, Diacetyl, and Popcorn Lung: Is the Threat Real? Vaping360 It's a Fact. Vaping Can Cause Popcorn Lung Poster ToucanEd What Vapes Have Diacetyl After Flavor Bans in the US? Do Foger Vapes Contain Diacetyl Gas Which Vapes Dont Have Diacetyl? Clear Vape Facts Australia Have Formaldehyde Resource Center Breathe PA 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.