title: Simple oxygen-failure safety device.
mesh_terms: D000769:Anesthesia, Inhalation; D006801:Humans; D010100:Oxygen / Q000008:administration & dosage*; D011482:Protective Devices; D012121:Respiration, Artificial; D012122:Ventilators, Mechanical / Q000295:instrumentation*
chemical_list: D010100:Oxygen