Foundations of medical oxygen systems: web annex A: technical considerations for the procurement of oxygen generator plants, 17 February 2023 18 May 2023 | Technical document Download (177.7 kB) Other languages:ArabicChineseRussian WHO Team Medical Devices and Diagnostics (MDD) Editors World Health Organization Number of pages 14 Reference numbers WHO Reference Number: WHO/2019-nCoV/Clinical/Oxygen/Web_annex_A/2023.1 Copyright