The Truth About Popcorn Lung and E Cigs Vaping: Get the Facts. Protect Your Future Anne Arundel County Health Department Health experts are sounding the alarm about a serious condition linked to vaping, known as "popcorn lung" or bronchiolitis obliterans. This irreversible lung disease is caused by harmful chemicals, like diacetyl, found VapingModule Popcorn lung: Causes, symptoms, and treatment Experts show that flavored e cigarettes cause irreversible lung damage. A U.S. teen developed "popcorn lung" after secretly vaping for 3 years a permanent, life altering disease. Officially known as bronchiolitis obliterans, the