Revenue is down 90% since June for a metro Detroit company that's the second largest nicotine vape distributor in the U.S., thanks to new federal regulatory actions. The crackdown from the U.S. Food Vapes Contain Diacetyl New Breeze Zero Nic Silver City Smoke Shop Gum Mint Understanding Popcorn Lung and Diacetyl: Risks and Prevention Vapestore Blog Ah yesvaping studies saying they contain diacetyl. : r Vaping Breeze Vapes Overview: An In Depth Analysis Clutch Vape Debunking the myth: There's no link between vaping and popcorn lung