Are Geek Bars Safe? Disposables Health Scares Reviewed Frozen Cherry Apple Geek Bar Pulse Hidden Dangers of Vaping: The Diacetyl Connection Sour Apple Rancher Geek Bar Lush Refreshing Vapes at EZPuff Sour Apple Ice Geek Bar Pulse X 25000 Disposable Vape , The notion that vaping causes "popcorn lungs" due to diacetyl in e liquids is based on outdated information. , ., While diacetyl was once used as a flavoring agent in some e liquids and linked to