COMPLEX MEDIA FOR AIR FILTER

摘要

PURPOSE: A complex filtering media for an air filter is provided to maintain the superior efficiency of filtration for a long period of time by using wet-type nonwoven fabric and cellulose pulp. CONSTITUTION: A first layer(10) in a wet-type nonwoven fabric form is prepared. The permeability of the first layer is between 100 and 2000cfm. A second layer(20) in a pulp form is prepared. The permeability of the second layer is between 10 and 130cfm. A resin is impregnated in the first layer in order to bond the first layer and the second layer. The first layer includes olefin-based or low melting point polyester-based staple fiber. The second layer includes cellulose pulp.