An expert has emphasized that prevention, not treatment, is the key to addressing the risks of vaping, particularly the irreversible lung damage known as “popcorn lung” or bronchiolitis obliterans. This condition, caused by chemicals like diacetyl in vapes, leads to permanent lung damage.

Professor Donal O’Shea, a chemistry expert, explained that diacetyl, also used in microwave popcorn factories, causes inflammation and scarring in the lungs. He stressed that once the lungs are damaged, treatment options are limited to symptom management, such as bronchodilators or even lung transplants in extreme cases.

O’Shea argues that prevention, rather than treatment, is the only effective defense against vaping-related lung damage.