One of the most serious risks of vaping? A condition called popcorn lung, or bronchiolitis obliterans. It's rare, but when it hits, it's permanentscarring the smallest airways in the lungs and causing China Customized All in One Vape Pen Manufacturers Suppliers Factory Kaiweili Digital Technology Elf Bar Concern Over Diacetyl In Lost Mary E Cigarettes What Vape Flavors Contain Diacetyl That lung scan visual hits hard, but the real takeaway is simple: vaping is not harmless water vapor. Chemicals found in some e cigarettes, including diacetyl, have been tied to serious lung damage,