Accompany you throughout your project An international expert in air and gas treatment, CHAUMECA designs, manufactures, commissions and maintains equipment and solutions in full cooperation with its partners and in line with the goals and expectations of its customers. NEW TOPAZENew product Range. Topaze Series, for more efficiency, more autonomy, more economy... BIOGASDiscover our biogas treatment solutions. TOPTWINDiscover the new TopTwin Serie. Heatless Adsorption Dryer.