In the reported investigation, a novel gas purification scheme discussed by Zaklad was used in connection with experiments involving the operation of an electron-beam pumped xenon laser. A recycling purification system was employed. In this system the xenon gas is circulated by a stainless steel bellows positive displacement pump at a maximum flow rate of 3.5 l/min. Copper catalyst maintained at a temperature of 200 C is employed to extract oxygen from the gas, while a cold trap removes any H2O or hydrocarbons present. A cyclical purification scheme offers many advantages over any static procedure. A continuous improvement in gas purity can be obtained or impurities, at least, can be held to a tolerable level. Small leaks in the vacuum system can be tolerated as continuous extraction of impurities is obtained.