A breathing mask for covers the nostrils of the user and supplies humidified gas for breathing to the nostrils comprising: a first member, for example a cushion (30), which abuts the face of a user and covers the nostrils and comprises a first port (32a) which takes in gas for breathing and a second member, for example a frame (20), having a rigidity greater than that of the first member, which covers at least a portion of the first member and comprises a second port (22a) connected to a means for transport of the gas for breathing and which mates with the first port portion wherein the first member has water repellent properties.
