Patent ID: 8033400

Claim:
A filtering material comprising: a non-woven organic synthetic polymer fabric as a base; and positively charged agglomerates of aluminum hydroxide nano-fibers; wherein the non-woven organic synthetic polymer fabric is formed of negatively charged fibers produced by an electrospinning method, wherein said negatively charged fibers have a diameter of 1.0 to 3.0 um; and wherein the positively charged agglomerates of aluminum hydroxide nano-fibers are fixed to the negatively charged fibers of the non-woven organic synthetic polymer fibrous fabric by electrostatic adhesion forces, and wherein the agglomerates of aluminum hydroxide nano-fibers have dimensions in a range of 0.2 to 5.0 um with specific surface area in a range of 100 to 250 m 2 /g and pore volume in a range of 50 to 95%.