South First — October 19, 2022. “‘The NMOG would work much like the electricity grid, with both centralised production units (Air Separation Units, or ASUs) with their own storage and transmission systems, and decentralised production (Pressure Swing Adsorption, PSA, and oxygen concentrators) to meet the current and future needs of medical oxygen in the country,’ said Dr Ramanan Laxminarayan, founder and president of OHT, at the launch.”