ATEX-Filter Safe Use also in Explosion-Hazardous Areas General NETZSCH Trockenmahltechnik GmbH has the required ATEX-EC-type examination certificate with certification for six filter model ranges for the EX-ZONE 20, II1D, according to directive 2014/34/EU, which was issued by an official body for the designated use in explosion hazardous areas. Pressure-shock resistant jet-nozzle filter in round construction with filter hoses or self-supporting filter elements, produced in either explosion pressure resistant or in explosion pressure shock resistant construction. Executed with closed filter housing for a maximum explosion pressure of 10 bar(g) or with a pressure relief device for a maximum reduced explosion overpressure of 2 bar(g). Pressure shock resistant filter in ... ...top removal execution which can be designed 10 bar pressure shock resistant or pressure relieved with rupture disc, with or without explosion channel or with relief vent. ...SmartRemoval execution with filter hose removal from the side through a robust door, pressure relieved design with rupture disc, with or without explosion channel or with relief vent.