587745 An apparatus for delivering a flow of breathable gas to a patient, comprising a cannula 2, first and second cannula branches 2a, 2b extending from the cannula 2, the first and second cannula branches 2a, 2b having respective first and second ends 2c, 2d configured to engage the nares of the patient in a non-sealing manner, a frame 3 configured to contact the patient's face and support the first and second ends 2c, 2d in engagement with the patient's nares, and straps 6 provided at respective ends of the frame 3, the straps 6 being configured to engage the patient's ears to maintain the frame in contact with the patient's face.
