Does vaping cause popcorn lung?

2022-01-19

No. There is no evidence that vaping nicotine causes this condition and there has not been a single case linked to vaping.

‘Popcorn lung’ (bronchiolitis obliterans) is a serious, but rare lung disease first detected in popcorn factory workers. It was linked to very high levels of ‘diacetyl’ which is used to create a buttery flavour.

Some earlier e-liquids contained diacetyl, however the levels found in vapour were hundreds of times lower than in cigarette smoke and there has never been a case of bronchiolitis obliterans due to smoking or vaping. Diacetyl is now rarely used.

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