Air filtration and treatment apparatus

An air filtration system for use in filtering a pressurized air flow, the system comprising:

• a primary particulate filter means for the removal of at least a portion of particulate matter entrained in the air flow;
• at least one ultraviolet lamp positioned downstream of the primary particulate filter means;
• and
• a permeable reaction filter positioned downstream of the at least one ultraviolet light, the permeable reaction filter and the at least one ultraviolet light constructed and arranged for the removal of at least a portion of contaminants entrained in the air flow, the permeable reaction filter having a substrate member and a photo-catalytic oxidizer layer disposed thereon a portion of the substrate member, said substrate member having an upstream surface and an opposed downstream surface, said photo-catalytic oxidizer layer being positioned on portions of the upstream surface and extending at least partially between the upstream surface and the downstream surface of the substrate member, said at least one ultraviolet lamp being constructed and arranged to irradiate at least a portion of the permeable reaction layer.

An air filtration system for use in filtering a pressurized air flow, the system comprising:

• a primary particulate filter for the removal of at least a portion of particulate matter entrained in the air flow;
• at least one ultraviolet lamp positioned downstream of the primary particulate filter;
• and
• a permeable reaction filter positioned downstream of the at least one ultraviolet light, the permeable reaction filter and the at least one ultraviolet light constructed and arranged for the removal of at least a portion of contaminants entrained in the air flow, the permeable reaction filter having a substrate member and a plurality of titanium dioxide particles bonded to portions of said substrate to form a photo-catalytic oxidizer layer disposed thereon a portion of the substrate member, said substrate member having an upstream surface and an opposed downstream surface, said photo-catalytic oxidizer layer being positioned on portions of the upstream surface and extending at least partially between the upstream surface and the downstream surface of the substrate member, said at least one ultraviolet lamp being constructed and arranged to irradiate at least a portion of the permeable reaction layer.