Enercon has considerable experience in all the processes where suction and purification are combined with the temperature and humidity of the air. Cascade filtering allows to cope with the most serious problems on a priority basis. Modular nature and technical compatibility of the systems, which we have been studying for years, enables us to put after and before the cooling and the filtering units, receivers, forced settling chambers, eddy-chamber and inertial multi-eddy-chambers. Enercon's flexibility enables the final user, in agreement with our technical department, to decide the customisation level of its system.We also produce hoods for smelting furnaces that can keep their suction constant and present in every production stage. They are equipped with motorised systems and direct profile hoods with venture tubes. We also carry out modifications to existing plants.