U.S. health officials move to restrict e cigarette sales to teens PBS News F.D.A. Delays Decision on Juul's E Cigarettes but Orders Others Off the Market The New York Times Does anyone know how often one should replace a pod w a vape like this? The liquid has turned a darker color is that normal? Just curious. : r Vaping How to Refill Vape Pods: The Juul, Cync, MyBlu and Gusto