Popcorn Lung Vape Warning: What You Need to Know Simpol.ph 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 Amazon.com: Every Vape You Take (Laminated Poster)18" x 24" inch (Tobacco Prevention) : Office Products Experts warn that flavored e cigarettes can cause irreversible lung damage, as seen in a U.S. teenager who developed "popcorn lung"a severe and permanent condition called bronchiolitis obliteransafter secretly vaping for three years.