A breathing arrangement includes a patient interface (10), at least one inlet conduit (22), and a headgear assembly (31). The patient interface (10) includes a mouth covering assembly (14) including a cushion structured to sealingly engage around exterior of a patient's mouth in use, a nozzle assembly (16) including a pair of nozzles (17) structured to sealingly engage within nasal passages of a patient's nose in use, and a flexible element (41) connecting the mouth covering assembly (14) and the nozzle assembly (16). The at least one inlet conduit (22) is structured to deliver breathable gas into at least one of the mouth covering assembly (14) and the nozzle assembly (16) for breathing by the patient. The headgear assembly (31) is removably connected to at least one of the mouth covering assembly (14) and the nozzle assembly (16) so as to maintain the mouth covering assembly (14) and the nozzle assembly (16) in a desired position on the patient's face.
