Oxygen Generating Systems Intl. (OGSI) is a manufacturer of turn-key medical PSA oxygen systems worldwide. Our oxygen generators operate automatically, are easy to maintain and produce a continuous flow of medical grade oxygen. OGSI’s oxygen generators are available in many sizes, have great energy numbers and are optionally equipped with touch screen and telemetric communications packages (smaller sizes included). All you need to produce oxygen from an OGSI plant is air and electricity.