This document specifies requirements for sterile, single-use, extracorporeal blood-gas exchangers (oxygenators) intended for supply of oxygen to, and removal of carbon dioxide from, human blood, during cardiopulmonary bypass (CPB) up to 6 h, extracorporeal lung assist (ECLA with VV, VAV, or AV cannulation strategies), cardiopulmonary support (CPS), extracorporeal life support (ECLS with VA cannulation strategy), extracorporeal carbon dioxide removal (ECCO2R), and other extracorporeal circulation techniques requiring blood-gas exchange. This document also applies to heat exchangers and arterial filters that are integral parts of the oxygenator. This document also applies to external equipment unique to the use of the oxygenator. This document does not apply to implanted oxygenators, liquid oxygenators, extracorporeal circuits (blood tubing), separate heat exchangers, separate ancillary devices, and separate arterial line filters.