TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Materials: The absorbent material consists of molecular sieves, magnesium phosphate, calcium sulfate, silica gel, clays, activated charcoal, activated alumina, water absorbent resins, titanium oxide, zirconium oxide, and/or calcium oxide. It is pattern printed as dots on the internal surface of the sealant layer (17).    TECHNOLOGY FOCUS - MECHANICAL ENGINEERING - Preferred Components: The pouch has seam(s) that is double sealed by a first and a second sealing region such that a channel is defined between the sealing regions. An absorbent material is located within the channel.    TECHNOLOGY FOCUS - METALLURGY - Preferred Materials: The metal foils comprise aluminum foil having a thickness of 6-120 microns.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Materials: The absorbent material consists of molecular sieves, magnesium phosphate, calcium sulfate, silica gel, clays, activated charcoal, activated alumina, water absorbent resins, titanium oxide, zirconium oxide, and/or calcium oxide. It is pattern printed as dots on the internal surface of the sealant layer (17).    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: A polymeric adhesive layer (12, 14, 16) is provided between the metal foils (13, 15) or between the barrier layer and the sealant layer. It contains an absorbent material. It is a polyurethane, epoxy resin, ethylene acrylic acid copolymer, polysulfide, reactive acrylate, UV curable adhesive for a polymer/foil bond, cyanoacrylate, or silicone. The housing further comprises a protective layer (11) having a surface disposed adjacent to the barrier external surface. The sealant layer and the protective layer comprise polymer. The sealant layer comprises polyesters, polyamides, polyvinylchloride, fluoroplastics, or polyolefins. The polymer is low density polyethylene, high density polyethylene, medium density polyethylene, linear low density polyethylene, copolymers of ethylene and alpha-olefins, two-ply high density polyethylene/linear low density polyethylene, ethylene interpolymers, polyethylene terephthalate, polypropylene, polychloro-trifluoroethylene, polyphenylene sulfide, ethylene vinyl acetate, ethylene vinyl alcohol, nitrile resin films, SURLYN, nylon, and/or rubber. The protective layer is selected from polyesters, polyamides, polyvinylchlorides, fluoroplastics, polyacrylonitrile, or polyolefins. It contains an absorbent material.