A first source of medical gas (20) has a generally cylindrical male outlet (22) with a cylindrical bore (26) and a threaded outer cylindrical surface (28). A flexible cylindrical elastomeric medical gas tubing (30) has an input end (36) with a bushing (40) making a flush abutment with the male outlet at the output orifice. An output end (38) attaches to any of a plurality of medical gas utilizing devices (42), but preferably with a dampening disperser held in position in the space in the vicinity of a patient's nose and mouth. An annular flange (44) of the input end bushing resides within a central cylindrical bored out region (60) extending through the first end (54) and nearly to the second end (58) of a rotatable connector (50) forming an interior surface (62) of a connector with threads (64) coupling with the threads (28) of the male outlet (22). The second end is an annular abutment (48) against the annular flange (44) holding the input end tubing bushing (40) against the outlet source (22) and providing an airtight coupling. A gripping means (70) is on the exterior surface of the connector.
