FILTER FOR AIR CLEANING AND ITS MANUFACTURING METHOD

摘要

Disclosed are a filter medium capable of being used for air cleaning, and its manufacturing method. The filter medium for air cleaning according to the present invention provides a filter medium including a porous membrane composed of a nano fiber web by an electrospinning process; and an air-permeable supporting material laminated into at least one side of the porous membrane, wherein the porous membrane has a collection efficiency of at least 99.9 % for particles ranging from 0.1 D to 0.3 D in size, and an airflow resistance of 30 30 H₂Oor less at 20 SCFH.