Abstract: A gas irradiation apparatus has a housing assembly having a gas inlet and a gas outlet. An irradiation chamber is contained within the housing, there the irradiation chamber has a first chamber, an adjacent second chamber, and an intermediate wall separating the first chamber from the second chamber. One or more conduits extend through the intermediate wall, which provide the exclusive flow path between the first chamber and the second chamber. A gas transfer fan is disposed within each conduit, with the gas transfer fans configured to induce flow between the first chamber and the second chamber. An array of light emitting diodes are configured to provide UVC light radiation into the irradiation chamber thereby irradiating any gas contained within the irradiation chamber.

Abstract: A gas irradiation system has an irradiation chamber having a plurality of compartments disposed circumferentially about a central axis. One of the compartments is an inlet compartment. The inlet compartment has an aperture at the bottom through which gas flows from the compartment. The irradiation chamber comprises a plurality of UV lights which are configured to irradiate the gas and neutralize pathogens as the gas flows through the irradiation chamber. Circumferentially adjacent to one side of the inlet compartment is an outlet compartment. Circumferentially adjacent in the opposite circumferential direction on the other side of the inlet compartment is the first of a plurality of intermediate compartments. These intermediate compartments extend circumferentially about the central axis between the inlet compartment and the outlet compartment.

Abstract: A gas irradiation system has an irradiation chamber having a plurality of irradiation compartments disposed circumferentially about a central axis. One of the compartments is an inlet compartment. The inlet compartment has an aperture at the bottom through which gas flows from the compartment. A UV LED is disposed within or adjacent to the aperture, where the UVC LED is configured to irradiate the gas and neutralize pathogens. Circumferentially adjacent to one side of the inlet irradiation compartment is an outlet irradiation compartment. Circumferentially adjacent in the opposite circumferential direction on the other side of the inlet radiation compartment is the first of a plurality of intermediate irradiation compartments. These intermediate compartments extend circumferentially about the central axis between the inlet compartment and the outlet compartment. The gas flows sequentially through each of the irradiation compartments, being irradiated in each compartment.