TM 10-8415-208-12Section II. EQUIPMENT DESCRIPTION1-8. EQUIPMENTCHARACTERISTICS,CAPABILITIESANDFEATURES. The STEPO-I is a personnel protectivesystem for use in immediate danger to life and health (IDLH) concentrations of class G, H and V agent environments.The STEPO-I has the following capabilities and features:Encloses the user completelyApproved for two hours of operating capabilityProvides a tethered or self-contained air supplyProvides emergency airProvides cooling capability to the userProvide protection against class G, H and V agents1-9. LOCATIONANDDESCRIPTIONOFMAJORCOMPONENTS. The STEPO-I provides personnel protectionagainst expected chemical hazards. The STEPO-I can be operated in two separate modes. The encapsulatingprotective suit can be worn with the rebreather and ice vest or with the emergency breathing apparatus and tethered airline. Both modes provide the operator with a source of breathing air and a body cooling capability.1-9.1 EncapsulatingProtectiveSuit. The encapsulating protective suit is a one piece totally encapsulating garment withintegral booties, an air tight glove cuff assembly and slide fastener closure. A polycarbonate view window is sealed into.the head area of the suit allowing the user to see out. Additional chemical protection is provided to the view window by aremovable fluorinated ethylene propylene (FEP) overlay. The suit has an enlarged back area so it may be worn over aself-contained breathing apparatus. Adjustable straps on the back of the suit allow excess material to be taken-up. Anair line passthrough is built into each suit so breathing air may be supplied from a remote air source through a tetheredair line. The suit can be configured with exhalation valves, to prevent over inflation in the tethered air mode of operation,or with plugs when inflation of the suit is not expected.1-4
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