Step one in the installation is connecting the electrical power supply to the atmospheric control module cabinet, where the fan generates the vacuum for the isolator. Next is the connection of a gas supply this can be compressed air, though nitrogen is frequently used so that the atmosphere inside the isolator can be fully inerted. There are three connections between the atmospheric control module and the flexible isolator: the gas feed, the differential pressure sensor, and the gas outlet. The gas feed is regulated inside the atmospheric control module cabinet. The differential pressure sensor, also inside the cabinet, connects using plastic tubing with a push-fit connector. An important design detail is the provision of a HEPA filter at the connection point of the tubing to the isolator. This permits the removal of the tubing at any time without loss of containment. The HEPA filter, in a stainless steel housing, is attached to the isolator and supported by the frame. The location of this gas outlet filter, with respect to the gas feed inlet, is an extremely important design detail, enhancing containment performance through unidirectional gas flow away from transfer devices through the containment barrier. Finally, the gas is vented from the atmospheric control module cabinet. This is another important detail, and ILC Dover can assist with how vent gas is managed.