The GIEBEL adsorbers of the VENT MA-D series are aluminum ventilation dryers for smaller hydraulic tanks and gearboxes. With low pendulum volumes, these adsorbers, equipped with valves, have a long maintenance interval. With a 3μm filter, the sucked air is completely dried and cleaned by this silica gel filter. An activated carbon layer adsorbs the oil mist and protects the desiccant and the environment. By replacing the entire cartridge maintenance time is very short. The application according to the ATEX product guideline 2014/34 / EU in Zone II 2 G/D IIC T4 is possible.