title: A lower risk alternative.
mesh_terms: D004868:Equipment Failure; D006750:Hospital Distribution Systems; D006785:Hospitals, University; D006801:Humans; D008284:Maintenance and Engineering, Hospital / Q000379:methods*; D009584:Nitrogen / Q000600:supply & distribution*; D010100:Oxygen / Q000600:supply & distribution*; D006113:United Kingdom
chemical_list: D009584:Nitrogen; D010100:Oxygen