"Popcorn lung?"
Seems there are some components in some vape cigarettes that can make a whole lot of hurt for users. Reading the article, though, it would seem that the offending substances, mainly flavoring ingredients, could be discontinued without significant economic harm to the vape market. I continue to believe that vaping is far less harmful than smoking conventional tobacco products, and as a non-smoker, I am happy not to be assailed with the stench of tobacco smoke in such locations as storefront areas where addicts convene to get one last drag before going back to work inside.
http://www.washingtonpost.com/....html?wpisrc=nl_draw