A respiratory mask (20), preferably a nasal mask, comprising a hollow body (1) comprising an inner chamber (2) and a gas inlet (3) in fluid communication with said inner chamber (2), said gas inlet (3) comprising an annular peripheral border (4) comprising a connecting structure (6, 7) for fixing thereto a tubular gas connector (10). Several venting ports (5) are arranged in said annular peripheral border (4) so that the inner chamber (2) is in fluid communication with the ambient atmosphere through said venting ports (5). The respiratory mask of the present invention is useable for treatment of a respiratory disorder or condition in non-invasive positive pressure ventilation or in a nasal continuous positive airway pressure therapy of sleep disordered breathing conditions, such as obstructive sleep apnea.