Outdoor air requirements in corridors

I' m currently working on a school project where most of the corridors have an exhaust system, that induces make-up air from the adjacent classrooms and (eventually negligible) infiltrated air directly from outdoors (due to windows permeability). Does this situation allows to comply with ASHRAE 62.1 outdoor air requirements for corridors, consideringa a ventilation distribution efficiency of 0.5? Should all the transfer air be considered as outdoor air, or only the "excess" (outdoor air supplied in classrooms that exceed its outdoor air requirements) outdoor air portion of the total transfer air? Thanks.