Cyclone-jet cylindrical filters are designed for high vacuum, high pressure, and explosion-prone areas. In this context, MDSJ AIR has developed a cylindrical bag filter concept that can ventilate bags in explosion zones. A pressure relief should be provided in relation to the corresponding pressure shock resistance. Additionally, an explosion diverter should be installed before the entry of the raw gas flow into the processing filter. These filters are applied for explosive dusts in locations that require pre-separation, such as product transfer centers and vacuum cleaners. The dust enters tangentially and, with the special design feature of MDSJ, the particles are first separated and directed downward through cyclonic action on the cylindrical wall. Our cyclone-filter combinations are available in capacities up to 90,000 m3/h. Along with MDSJ’s special design, these filters feature high vacuum resistance up to 2 bar, a double-walled body structure for explosion safety, stainless steel and carbon steel body options, and easy access through central covers.