Duty Free stores are stores located in areas restricted to passengers on international trips (for departures as well as arrivals). There is a specific legislation for this type of tax-free commerce with regards to allowments, types of payment, etc.
Dufry Shopping is a store for passengers who depart on/arrive from domestic (national) trips. Dufry Shopping stores can be located in passenger restricted areas or at certain airports with general public access.
Get to know the Dufry Shopping websites
Get to know the Duty Free Dufry Brazil website