Irritating Compounds Discovered In 'Vape Juice'

Airway-irritating acetals seem to form in some types of vape juice even without heat, researchers find — likely a reaction between the alcohol and aldehydes in the liquid.

Research chemists who analyzed a number of flavored e-liquids found that some ingredients combine on the shelf to create "acetals" — compounds likely to irritate or inflame airways when inhaled.

(Image credit: Gabby Jones/Bloomberg via Getty Images)



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