This suitcase mounted compressor and power module is used in conjunction with the Hermes Model 80 Precision Flask Package (PFP). It contains the system power, pumps, dryer (optional), valves and electronics.
The Hermes system, comprised of the Model 80 and 90, is used in the NOAA Carbon Cycle Greenhouse Gas (CCGG) aircraft sampling program for vertical profile measurements to collect samples for analysis of CO2, CH4, N2O, CO, H2, and 50 other gas and isotope species.