ReferredtoasanOriginalEquipmentManufacturer(OEM)part,thisswitchmechanicallydirectstheflowoffreshgastoanauxiliarymanualbreathingcircuitKnownasanAuxiliaryCommonGasOutlet(ACGO),thisswitchguardiseasytoinstall.TheguardthatcoverstheswitchismadeofAcrylonitrileButadieneStyrene(ABS)plastic,isimpactresistant,lightweight,toughandheatresistant.Theguardsurface is ured,freeofsharpedgesandisarustfreesubstratematerial.ThisAuxiliaryCommonGasOutlet(ACGO)switchguardattachesthroughtheACGOportonthefrontofaGEAISYSCS2AnesthesiaDeliverysystem.