SPARK-CHEM/Ex fans have been developed for application in areas of explosion risk, where explosive atmosphere (i.e. mixture of flammable compounds in the form of gases and vapours with the air) is likely to occur. Additionally, the forwarded air can be polluted with chemically aggressive factors (see Table on page 65) of maximum dustiness concentration up to 0,3 g/m³. The SPARK-CHEM/Ex series of fans consists of four sizes of motor rates, ranging from 0,12 kW up to 0,75 kW and of maximum volume flow 5000 m³/h. The fans meet the requirements of the ErP 2009/125/EC Directive.