FDA Orders Juul to End Vaping Sales Respiratory Therapy What is a Juul? It's a trend parents need to know about Youth vaping isn't just fueling addictionit's leaving behind a growing trail of toxic waste in our schools and communities. Join Parents Against Vaping for the next Clear the Vapor Conversations event: From FDA to order Juul e cigarettes off U.S. market, report says Study: Juul Pods Contain Caffeine. What's It Doing There, And What Does It Do?