Bactericidal after-filter device

Abstract

A bactericidal after-filter device that mounts generally parallel to and downstream of an air filter of an air duct circulation network of a living enclosure includes a body having a front-screen element facing a back-screen element that allow for the filtered air to freely flow there through. A bactericidal medium, such as fibers forming a layer of angel's hair, is contained in between the front-screen and back-screen elements of the body and has a porosity that provides substantially no obstruction to the filtered air flowing there through while it locally retains and kills the air-suspended bacteria therein.

I claim:  
     
         1 . A bactericidal after-filter device for mounting parallel to and downstream of an air filter of an air duct circulation network of a living enclosure, said device comprising: 
 a body including a front-screen element facing a back-screen element for allowing filtered air to freely flow therethrough; and    a bactericidal medium contained in between said front-screen and backscreen elements of said body and having a porosity allowing for said filtered air to freely flow therethrough while retaining and killing air-suspended bacteria therein.    
     
     
         2 . The device of  claim 1 , wherein said bactericidal medium being a bactericidal fiber forming a layer of angel's hair with said porosity providing substantially no obstruction to the filtered air flowing therethrough while locally retaining and killing air-suspended bacteria therein.  
     
     
         3 . The device of  claim 1 , wherein said bactericidal medium being generally uniformly distributed between said front-screen and back-screen elements.  
     
     
         4 . The device of  claim 1 , wherein said body including a fastening means connecting said front-screen element to said back-screen element and slightly squeezing said bactericidal medium therebetween; thereby preventing said bactericidal medium from being displaced by the air flowing therethrough.  
     
     
         5 . The device of  claim 1 , wherein said body including a frame connecting to said front-screen and back-screen elements.  
     
     
         6 . The device of  claim 1 , wherein said back-screen element for connecting to an air filter of the air duct circulation network and retaining said bactericidal medium therebetween, whereby the air filter being said front-screen element.  
     
     
         7 . The device of  claim 4 , wherein said fastening means being stitches generally subdividing said bactericidal after-filter device into a plurality of sub-elements.  
     
     
         8 . The device of  claim 1 , wherein said bactericidal medium being an anti-dust mite medium.  
     
     
         9 . The device of  claim 1 , wherein said bactericidal medium including triclosan agent.  
     
     
         10 . The device of  claim 9 , wherein said bactericidal medium including benzyl benzoate agent.  
     
     
         11 . The device of  claim 10 , wherein said bactericidal medium being Rhovyl'A.S.+™ fiber materials.  
     
     
         12 . The device of  claim 10 , wherein said bactericidal medium having a density between two and ten grams per feet square.  
     
     
         13 . The device of  claim 1 , wherein said bactericidal medium having a density between two and ten grams per feet square.  
     
     
         14 . A method for purifying a filtered air from undesirable bacteria suspended therein, said method comprising the steps of: 
 a) providing a body including a front-screen element facing a back-screen element for allowing filtered air to substantially perpendicularly and freely flow therethrough;    b) providing a bactericidal medium; and    c) uniformly distributing said bactericidal medium between said front-screen and back-screen elements of said body for allowing for said filtered air to freely flow therethrough while retaining and killing air-suspended bacteria therein.    
     
     
         15 . The method of  claim 14 , comprising, after step c), the steps of: 
 d) providing a fastening means connecting said front-screen element to said back-screen element and slightly squeezing said bactericidal medium therebetween to form a bactericidal after-filter device, thereby preventing said bactericidal medium from being displaced by the air flowing therethrough; and    e) installing said bactericidal after-filter device parallel to and downstream of an air filter of an air duct circulation network of a living enclosure.    
     
     
         16 . The method of  claim 14 , wherein said bactericidal medium of step b) being provided as compacted bactericidal fibers, said method comprising, after step b), the step of: 
 b1) thinning out said bactericidal medium as to form a layer of angel's hair with said bactericidal fibers having a porosity providing substantially no obstruction to the filtered air flowing therethrough while locally retaining and killing air-suspended bacteria therein.    
     
     
         17 . The method of  claim 16 , comprising, after step c), the steps of: 
 d) providing a fastening means connecting said front-screen element to said back-screen element and slightly squeezing said bactericidal fibers therebetween to form a bactericidal after-filter device, thereby preventing said bactericidal fibers from being displaced by the air flowing thereth rough; and    e) installing said bactericidal after-filter device parallel to and downstream of an air filter of an air duct circulation network of a living enclosure.    
     
     
         18 . The method of  claim 15 , wherein said bactericidal medium of step b) being provided as compacted bactericidal fibers, said method comprising, after step b), the step of: 
 b1) thinning out said bactericidal medium as to form a layer of angel's hair with said bactericidal fibers having a porosity providing substantially no obstruction to the filtered air flowing therethrough while locally retaining and killing air-suspended bacteria therein.    
     
     
         19 . The method of  claim 14 , wherein said bactericidal medium including triclosan agent and benzyl benzoate agent.  
     
     
         20 . The method of  claim 14 , wherein said bactericidal medium having a density between two and ten grams per feet square.