Antimicrobial pool filter

Abstract

Provided is a filter medium comprised of core-sheath fibers wherein the sheath portion comprises an effective amount of antimicrobial agent. Preferably, all fibers of the filter medium comprise such core-sheath fibers, so that every fiber of the filter medium contains the antimicrobial agent to effectively deter bacterial growth.

1 . A filter medium comprised of a majority of core-sheath fibers with the sheath portion containing an antimicrobial agent. 
   
   
       2 . The filter medium of  claim 1 , wherein greater than 90% of fibers comprising the filter medium are the core-sheath fibers with the sheath portion containing an antimicrobial agent. 
   
   
       3 . The filter medium of  claim 1 , wherein all of the fibers comprising the filter medium are the core-sheath fibers. 
   
   
       4 . The filter medium of  claim 1 , wherein the antimicrobial agent is a silver based agent. 
   
   
       5 . The filter medium of  claim 1 , wherein the core-sheath fibers are polyester spunbond fibers with both the core and sheath portions comprising a polyester polymer 
   
   
       6 . A pool filter system comprising the filter medium of  claim 1 . 
   
   
       7 . A hot tub filter system comprising the filter medium of  claim 1 . 
   
   
       8 . A water filter system comprising the filter medium of  claim 1 . 
   
   
       9 . A method for filtering water, which comprises passing the water through the filter medium of  claim 1 . 
   
   
       10 . The method of  claim 9 , wherein the water being filtered is pool water.