A modular air curtain device for treating air in one or more occupant zones, the device comprising:
- one or more table structures, wherein each of the one or more table structures is located in one of the one or more occupant zones, such that each of the one or more occupant zones surrounds at least one of the one or more table structures, and wherein the each of the one or more table structures comprises one of one or more substantially horizontal, flat table surfaces and one or more table support elements, and wherein each of the one or more table support elements supports one of the one or more table surfaces, and wherein each of the one or more table support elements houses a draft fan and one or more primary air treatment systems pneumatically connected downstream or upstream of the draft fan;
- one or more air intakes, wherein each of the one or more air intakes is located in one of the one or more table structures, and wherein the draft fan in each of the one or more table support elements is operative to induce a negative air pressure at each of the one or more air intakes, so as to draw into each of the one or more air intakes an intake air flow from one of the one or more occupant zones, and wherein the draft fan in each of the one or more table support elements is pneumatically connected upstream or downstream of one of the one or more primary air treatment systems, and wherein each of the one or more primary air treatment systems is operative to remove and/or destroy pathogens from the intake air flow from one of the one or more occupant zones;
- one or more treated air outlets, wherein each of the one or more treated air outlets is located in one of the one or more table support elements, and wherein each of the one or more treated air outlets is pneumatically connected downstream of at least one of the one or more primary air treatment systems, and wherein each of the one or more treated air outlets expel from one of the one or more occupant zones a treated air flow from the at least one of the one or more primary air treatment systems;
- and
- one or more exhaust outlets, wherein each of the one or more exhaust outlets is located above one of the one or more occupant zones, and wherein each of the one or more exhaust outlets is pneumatically connected downstream of at least one exhaust fan, and wherein each of the one or more exhaust outlets comprise one or more curtain air nozzles and one or more occupant air nozzles, and wherein each of the one or more curtain air nozzles is configured to direct a positive pressure curtain air flow around a periphery of one of the one or more occupant zones, so as to pneumatically isolate the one of the one or more occupant zones from an ambient atmosphere, and wherein each of the one or more occupant air nozzles is configured to direct a positive pressure occupant air flow downward through one or the one or more occupant zones, so as to entrain suspended aerosols and suspended pathogens in the one of the one or more occupant zones and carry the suspended aerosols and suspended pathogens into one of the one or more air intakes located in the one of the one or more occupant zones.