A nasal pad section (250, 350) for use as part of an apparatus to provide a gas stream to a user, said pad section being in use located in front of the upper lip and below the user's nostrils, comprising said pad section: a pad gasket (250-2, 350-2) having an open lower front part and a lower rear surface (500, 700), wherein the open lower front part acts as a gas opening ( 237) that receives a current of gases in use； and nasal pads (250-1, 350-1), hydraulically connected to said pad joint and adapted to seal substantially against the user's nostrils during use, so that said gas stream passes to said nasal pads from said pad gasket and be supplied to the user, each nasal pad (250-1, 350-1) comprising a rod (253) and a cap (255), characterized in that: the lower rear surface (500, 700) of said pad gasket is shaped so that at least a portion of said lower back surface (500, 700) is concave when viewed directly from one side； and a wall (237a) surrounds the opening (237), and the concave part of said lower posterior surface (500, 700) runs between the bases of the stems of said nasal cushions (250-1, 350-1) and a portion lower back of said wall (237a), to ensure that contact between the user's face and the nasal pad section (250, 350) occurs only in the nasal pads (250-1, 350-1) during a majority of its use, and there is no contact or there is a minimum contact in use with the user's upper lip.Un sección (250, 350) de almohadilla nasal para utilizar como parte de un aparato para proporcionar una corriente de gases a un usuario, estando dicha sección de almohadilla en uso ubicada enfrente del labio superior y por debajo de los orificios nasales del usuario, comprendiendo dicha sección de almohadilla: una junta (250-2, 350-2) de almohadilla que tiene una parte frontal inferior abierta y una superficie posterior inferior (500, 700), en donde la parte frontal inferior abierta actúa como una abertura de gases (237) que recibe una corriente de gases en uso； y almohadillas n
