Vape Juice Brands to Avoid (Harmful Ingredients) Vape Superstore Understanding Popcorn Lung and Diacetyl: Risks and Prevention Vapestore Blog Understanding the Dangers of Vaping: Popcorn Lung and Diacetyl Risks Vaping is on the rise. While e cigarettes don't contain tobacco, they may still contain many of the same toxic and cancer causing chemicals found in regular cigarettes. This includes: Acrolein (weed