Gas cleaners are used for Hydrogen Sulphide removal from Natural gas/ Biogas. Hydrogen Sulphide is present in numerous gaseous waste streams from natural gas plants, oil refineries, and waste water treatment plants among other processes. If the H2S content is very high, IETL offers its biochemical gas cleaners–the Bioskrubber™ system followed by an Adsorbent Based System. However many gases have very low ppm levels of H2S which need to be removed. In such cases, only Adsorbent Based Systems (Gas cleaners) can be provided. A water-spray system to saturate the inlet gas may be required.