Patent ID: 6224655
Filing Date: 2001-05-01
Classification: A61L,B01D

Abstract:
In a microbiocidal air filter assembly, for filtering air, havinga) a housing component defining an air pathb) an air filter componentb) an air inlet, andd) an air outlet,wherein said air filter component comprises a microbiocidal air filter element, wherein said air filter component is disposed so as to intersect said air path for air flow communication between said air inlet and said air outlet through said microbiocidal air filter element, the improvement wherein said air filter component comprises an upstream filter element and a downstream filter element, said microbiocidal air filter element being disposed between said upstream and downstream filter elements so as to define an intermediate air filter element, wherein said air filter component is disposed so as to intersect said air path for air flow communication between said air inlet and said air outlet through each of the air filter elements, wherein said upstream and downstream air filter elements are each microbiocidal air filter elements, wherein said upstream and downstream air filter elements each comprises a demand disinfectant resin, said demand disinfectant resin being in the form of particles of an iodinated strong base anion exchange resin and wherein each of said upstream and downstream air filter elements is spaced apart by an air space, from said intermediate filter element.