Portable Workstation for Desert Deployment February 22, 2018/Myles Kelvin/Blog Desert filter back Four high-pressure fans force massive volumes of cooling air into the MilPAC-III chassis. MilPAC-III | Secondary Link High Capacity Cooling - Filter-Back Advanced cooling system The standard MilPAC-III is fully functional at 50C tested to Mil-Std 810G. For dusty or sandy environments, we have developed the desert filter back; a high capacity washable electrostatic filter system that replaces the standard rear panel. Four high-pressure fans make sure that the MilPAC can operate Desert filter back Four high-pressure fans force massive volumes of cooling air into the MilPAC-III chassis. MilPAC-III | Secondary Link High Capacity Cooling - Filter-Back Advanced cooling system The standard MilPAC-III is fully functional at 50C tested to Mil-Std 810G. For dusty or sandy environments, we have developed the desert filter back; a high capacity washable electrostatic filter system that replaces the standard rear panel. Four high-pressure fans make sure that the MilPAC can operate at full speed in the harshest of environments. The MilPAC-III is a deployable workstation for desert / high temperature and dusty environments. All air entering the MilPAC-III is filtered through the filter-back, and all the other fans exhaust, thus keeping the interior clean and cool.