The present disclosure relates to a positive airway interface system (10) which includes a mouth interface (100) having an internal support structure (130) and an external shell (112) disposed over the internal support structure and a plurality of attachment mechanisms (170) provided about an external surface of the external shell. The positive airway interface system also includes a nasal interface (200) having a pair of nasal pillows (270) 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 (54, 58) 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.
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