This Gas Purifier unit from SERTRONIC operates on gas treated 02, and air. It is capable of removing impurities CH4, CO, CO2 AND H20 with an outlet impurities level of 1ppb. The principle on which the unit works is catalysis + adsorption. The feed gas passes through a special catalyst at high temperature to convert hydrocarbon, H2 and CO in the water and in CO2 removable by an adsorbant layer. The unit is especially useful in chemical industries, laboratories, semi-conductor industries and fiber optics industries.