| CPC F24F 8/22 (2021.01) [A61L 9/20 (2013.01); A61L 2209/12 (2013.01)] | 11 Claims |

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1. An air treatment system for treating air contained within an indoor environment, the system comprising:
a housing defining an air intake adapted to receive air from the indoor environment into the housing, an air discharge adapted to return air from within the housing back to the indoor environment, and an enclosed disinfection chamber in communication with the air intake and the air discharge;
a blower adapted to move air through the disinfection chamber along a nominal flow axis from the air intake to the air discharge;
a first LED emitter mounted within the disinfection chamber generating an ultraviolet light beam having a wavelength between about 240 nm and about 300 nm and a first spacial distribution of direct ultraviolet light about a first beam center axis; and
a second LED emitter mounted within the disinfection chamber generating an ultraviolet light beam having a wavelength between about 240 nm and about 300 nm and a second spacial distribution of direct ultraviolet light about a second beam center axis,
wherein the first beam center axis is generally perpendicular to the nominal flow axis and the second beam center axis is generally perpendicular to the first beam center axis,
wherein the second spacial distribution of direct ultraviolet light at least partially overlaps the first spacial distribution of direct ultraviolet light within the disinfection chamber,
wherein the first and second emitters each include an array of LED elements, whereby the spacial distribution of direct ultraviolet light respectively generated by the first and second emitters is characterized by a major axis and a minor axis, and
wherein a first reference plane containing the first beam center axis and the major axis of the first spacial distribution of ultraviolet light is generally perpendicular to a second reference plane containing the second beam center axis and the major axis of the second spacial distribution of direct ultraviolet light.
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