The apparatus to give a continuous positive airway pressure (CPAP), and especially a nasal system (nCPAP), has a hollow body (10) where an overpressure is built up. An opening (20) in a side wall of the body gives a feed of air for inhalation (A) and extraction of the exhaled air. The apparatus to give a continuous positive airway pressure (CPAP), and especially a nasal system (nCPAP), has a hollow body (10) where an overpressure is built up. An opening (20) in a side wall of the body gives a feed of air for inhalation (A) and extraction of the exhaled air. A connector is attached to an end wall (10a) of the hollow body as a link to the nose and/or mouth mask. A second opening (71) at another body side wall acts as a feed for a medication flow (M) into the hollow body. The apparatus can be connected to a pressure meter.
