Welcome to VU,
@Ryan Owen!
Don't need any bogus articles to tell me that in the four years I've vaped, my lungs are definitely healthier! I can walk up a flight of stairs without gasping for air, I can hold my breathe at least five times longer than I could as a smoker, I don't wake up every morning coughing myself blind, I can taste my food, and I can smell things that I couldn't while smoking for over 30 years.
Eliquid contains FOUR ingredients: Propylene glycol (PG), vegetable glycerin (VG), nicotine, and flavoring. There are a few flavors that may contain diacetyl and/or acetoin, but even at the heaviest usage of those ingredients (mainly found in creams and custards), the levels are still hundreds of times lower in those flavors than in traditional cigarettes. (That means if no one died from "popcorn lung" while smoking, they sure aren't going to get it from vaping.)
Your article is missing a few facts, Ryan....sorry!