A diving mask comprising: a. A body provided with a faceplate comprising an upper part, and a flexible skirt including a partition delimiting an upper chamber for viewing from a lower chamber for breathing, the partition being arranged to be supported above the nose of the user in such a way that the nose, and optionally the mouth, of the user are located in the lower chamber, while the eyes of the user are located in the upper chamber, the partition including at least one passage arranged to allow the circulation of fresh air between the upper chamber and the lower chamber during a phase of inhalation of the user, b. a snorkel disposed in the extension of an upper part of the body, the snorkel comprising at least one air duct; c. the body includes an exhaled air expelling device which forms a fluid connection of the lower chamber to the air duct of the snorkel; characterized in that: - the body comprises a flexible and deformable main nasal part, the upper edge of which is secured in a sealed manner to the lower edge of the upper part of the faceplate, - in that the faceplate comprises a lower part, and in that the main nasal part comprises a lower edge secured in a sealed manner to the upper edge of the lower part of the faceplate, - in that the main nasal part comprises a main housing receiving the nose and configured in such a way as to allow the pinching of the nose of the user, and - in that the skirt comprises an auxiliary nasal part, in the extension of the partition, said auxiliary nasal part comprises an auxiliary housing receiving the nose and configured in such a way as to allow the pinching of the nose of the user. a. A body provided with a faceplate comprising an upper part, and a flexible skirt including a partition delimiting an upper chamber for viewing from a lower chamber for breathing, the partition being arranged to be supported above the nose of the user in such a way that the nose, and optionally the mouth, of the user are located in the lower chamber, while the eyes of the user are located in the upper chamber, the partition including at least one passage arranged to allow the circulation of fresh air between the upper chamber and the lower chamber during a phase of inhalation of the user, b. a snorkel disposed in the extension of an upper part of the body, the snorkel comprising at least one air duct; c. the body includes an exhaled air expelling device which forms a fluid connection of the lower chamber to the air duct of the snorkel; characterized in that: - the body comprises a flexible and deformable main nasal part, the upper edge of which is secured in a sealed manner to the lower edge of the upper part of the faceplate, - in that the faceplate comprises a lower part, and in that the main nasal part comprises a lower edge secured in a sealed manner to the upper edge of the lower part of the faceplate, - in that the main nasal part comprises a main housing receiving the nose and configured in such a way as to allow the pinching of the nose of the user, and - in that the skirt comprises an auxiliary nasal part, in the extension of the partition, said auxiliary nasal part comprises an auxiliary housing receiving the nose and configured in such a way as to allow the pinching of the nose of the user. - the body comprises a flexible and deformable main nasal part, the upper edge of which is secured in a sealed manner to the lower edge of the upper part of the faceplate, - in that the faceplate comprises a lower part, and in that the main nasal part comprises a lower edge secured in a sealed manner to the upper edge of the lower part of the faceplate, - in that the main nasal part comprises a main housing receiving the nose and configured in such a way as to allow the pinching of the nose of the user, and - in that the skirt comprises an auxiliary nasal part, in the extension of the partition, said auxiliary nasal part comprises an auxiliary housing receiving the nose and configured in such a way as to allow the pinching of the nose of the user.