Pressurized Protective Entrance

A one-or two-compartment structure which functions as an airlock, the purpose of which is to permit personnel to enter or leave a pressurized protective shelter with a loss of pressure during a chemical, biological or radiological attack. One end of the structure, when installed, forms an airtight joint at the entrance to the pressurized shelter. The other end of the structure has a quick acting closure mechanism which facilitates rapid entrance or egress. The item is of knockdown construction with an impermeable fabric covering, supported by metal channels and tubing or hoisted and held in place by a block and tackle arrangement. It may be used as a disrobing chamber for personnel to remove contaminated clothing. It is stored and transported in the trailer, when not in use.