Parker Balston Membrane HFX Series Industrial Nitrogen Generators will produce 95 to 99% pure, commercially sterile nitrogen from a standard compressed air supply at dew points to -58°F (-50°C). All Balston membrane nitrogen generators include a 0.01 micron membrane filter which ensures the nitrogen is completely free of suspended impurities. For applications requiring monitoring and controlling, an oxygen monitor which offers LED readouts and remote alarm or chart recorder capabilities can be included. An audible alarm signals high or low oxygen concentrations (determined by the application). The oxygen monitor is supplied with alarm relay outputs which may be used to signal a remote alarm, open a backup supply or the process stream, or close the process flow.