Source:http://linkedlifedata.com/resource/umls/id/C0181744
SPN: An oxygen mask is a device placed over a patient's nose, mouth, or tracheostomy to administer oxygen or aerosols.,UMD: Devices used to deliver air, oxygen, or a mixture of the gases to a patient's airway. Air-oxygen masks are connected to the gas source with tubing and typically include head straps for stabilization. The devices are made of plastic or rubber.