These fans are designed to grant a correct air extraction avoiding risks of explosion due to the presence of flammable gases, for instance in the ventilation of battery rooms, petro-chemical platforms, laboratories etc., for duct mounting. This line consists of 15 sizes with impeller diameter from 310 up to 1600 mm.

They are characterized by particular materials and design to avoid as much as possible the risk of explosion, according to the ATEX 2014/34/UE directive. Different constructions are foreseen for fans in category 2G, 2D or 3G, 3D.