The present disclosure relates to a positive airway interface system which includes a mouth interface having an internal support structure and an external shell disposed over the internal support structure and a plurality of attachment mechanisms provided about an external surface of the external shell. The positive airway interface system also includes a nasal interface having a pair of nasal pillows configured to sealingly engage with a user's nares. This positive airway interface system can be configured to transform a tensile sealing force applied by a headgear strap assembly in a uniform-like manner so as to sealingly engage the mouth interface around the user's mouth and the pillows with the user's nose when a sealing force applied by the headgear strap assembly.
