Air filtration and treatment apparatus
First Claim
1. An air filtration system for use in filtering a pressurized air flow, the system comprising:
- a housing through which the air flow is caused to pass, the housing defining a first chamber, a second chamber downstream of the first chamber, and a third chamber downstream of the second chamber;
a primary particulate filter positioned in the first chamber constructed and arranged for the removal of at least a portion of particulate matter entrained in the air flow;
at least one ultraviolet lamp positioned in the second chamber;
a permeable reaction filter positioned in the second chamber 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 photo-catalytic oxidizer layer of the permeable reaction filter; and
an adsorption filter positioned in the third chamber.
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Accused Products
Abstract
An air filtration system for use in filtering a pressurized air flow, the system comprising a primary particulate filter for removal of at least a portion of particulate matter entrained in the air flow, at least one ultraviolet lamp, and a permeable reaction filter. The ultraviolet lamp is positioned downstream of the primary particulate filter and the permeable reaction filter is positioned downstream of the ultraviolet light. The permeable reaction filter has a substrate member and a plurality of titanium dioxide particles bonded to portions of the substrate member to form a photo-catalytic oxidizer layer disposed thereon a portion of the substrate member. The ultraviolet lamp irradiates at least a portion of the permeable reaction layer so that at least a portion of contaminants entrained in the air flow. The system may also include an adsorption filter positioned downstream of the permeable reaction filter.
86 Citations
43 Claims
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1. An air filtration system for use in filtering a pressurized air flow, the system comprising:
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a housing through which the air flow is caused to pass, the housing defining a first chamber, a second chamber downstream of the first chamber, and a third chamber downstream of the second chamber;
a primary particulate filter positioned in the first chamber constructed and arranged for the removal of at least a portion of particulate matter entrained in the air flow;
at least one ultraviolet lamp positioned in the second chamber;
a permeable reaction filter positioned in the second chamber 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 photo-catalytic oxidizer layer of the permeable reaction filter; and
an adsorption filter positioned in the third chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An air filtration system for use in filtering a pressurized air flow, the system comprising:
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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. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. An air filtration system for use in filtering a pressurized air flow, the system comprising:
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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. - View Dependent Claims (40, 41, 42, 43)
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Specification