7 Daze Receives PMTA Filing Letter From the FDA 7 Daze MFG E Cigarettes, Vapes, and other Electronic Nicotine Delivery Systems (ENDS) FDA The FDA doesn't know if flavored vaping chemicals are safe to breathe Salon.com Juice Head Pouches PMTAs Accepted by the FDA The Food and Drug Administration (#FDA) on Tuesday authorized selected #vape flavors from a Los Angeles manufacturer, #Glas, highlighting safeguards to limit underage use.