Diacetyl is frequently added to flavored e-liquid to enhance the taste. Inhaling diacetyl causes inflammation and may lead to permanent scarring in the smallest branches of the airways — popcorn lung — which makes breathing difficult.
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Vaping-related lipoid pneumonia is the result of inhaling oily substances found in e-liquid, which sparks an inflammatory response in the lungs.
what about inhaling hot vaporized potent anti-inflammatory compounds?
https://www.hopkinsmedicine.org/health/wellness-and-prevention/what-does-vaping-do-to-your-lungs
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