Patent ID: 8328917

Claim:
An air filtration system comprising: a. a particulate filter operably coupled to a substrate; b. substrate powder coated with a solvent-free and heat-cured binary photocatalyst-resin mixture comprised of about 60% to 85% by weight of only titanium dioxide and about 15% to 40% by weight of polymer resin, wherein the binary photocatalyst-resin mixture is electrically charged and sprayed onto the substrate, and the binary photocatalyst-resin mixture is cured by heating onto the substrate to form a photocatalyst powder coated-substrate; and c. a UV light source for irradiating UV light on the photocatalyst powder-coated substrate to remove contaminants from the surface of the photocatalyst powder coated-substrate once the contaminants bind to the photocatalyst powder coated-substrate.