Abstract: An air treatment system includes a lower cowling configured to be suspended from a ceiling, the lower cowling defining an interior lower cowling surface and configured to be disposable radially outward from and around a fan configured to induce airflow. Further, the air treatment system includes an upper cowling configured to be disposed vertically above the lower cowling and define an interior upper cowling surface. A gap between the interior upper cowling surface and the interior lower cowling surface forms a fluid passageway comprising an intake opening, an exhaust opening, and a chamber. The fluid passageway is contoured to receive airflow from the fan via the intake opening and direct the airflow through the chamber to exit the exhaust opening. Moreover, the air treatment system includes at least one air treatment device secured within the chamber, the air treatment device configured to treat air passing through the chamber.

Abstract: An air treatment system includes a lower cowling configured to be suspended from a ceiling, the lower cowling defining an interior lower cowling surface and configured to be disposable radially outward from and around a fan configured to induce airflow. Further, the air treatment system includes an upper cowling configured to be disposed vertically above the lower cowling and define an interior upper cowling surface. A gap between the interior upper cowling surface and the interior lower cowling surface forms a fluid passageway comprising an intake opening, an exhaust opening, and a chamber. The fluid passageway is contoured to receive airflow from the fan via the intake opening and direct the airflow through the chamber to exit the exhaust opening. Moreover, the air treatment system includes at least one air treatment device secured within the chamber, the air treatment device configured to treat air passing through the chamber.

Abstract: An air treatment system includes a lower cowling configured to be suspended from a ceiling, the lower cowling defining an interior lower cowling surface and configured to be disposable radially outward from and around a fan configured to induce airflow. Further, the air treatment system includes an upper cowling configured to be disposed vertically above the lower cowling and define an interior upper cowling surface. A gap between the interior upper cowling surface and the interior lower cowling surface forms a fluid passageway comprising an intake opening, an exhaust opening, and a chamber. The fluid passageway is contoured to receive airflow from the fan via the intake opening and direct the airflow through the chamber to exit the exhaust opening. Moreover, the air treatment system includes at least one air treatment device secured within the chamber, the air treatment device configured to treat air passing through the chamber.

Abstract: A pathogen disinfection system for an indoor space includes a plurality of modular units, each modular unit having a frame and a plurality of panels. A fan module includes a fan configured to induce airflow from an indoor space into the fan module and direct the airflow toward at least one fan module air outlet. An ultraviolet (UV) disinfection module includes at least one UV light source configured to emit UV light to at least partially inactivate pathogens in the airflow. Additionally, the UV disinfection module is configured to receive the airflow at a UV disinfection module air inlet and direct the airflow toward a UV disinfection module air outlet. Moreover, the return module is configured to receive the airflow at a return module air inlet and direct the airflow toward a return module air outlet and into another portion of the indoor space.

Abstract: A pathogen disinfection system includes a base and a pathogen disinfection apparatus having a UV light source disposed in the base and configured to emit UV light to at least partially inactivate pathogens exposed to the emitted UV light. Further, the system includes a beam shaping mechanism configured to shape a path of the emitted UV light so that the UV light is confined to a selected width, a first motion sensor configured to detect when an object or human being has moved into the UV light path and send a first signal in response to detecting such a movement, a proximity sensor configured to detect when a human being is present and send a second signal in response to detecting such a presence, and a controller to activate the UV light source after receiving the first signal and deactivating the UV light source after receiving the second signal.