We are working on a project with very large warehouses with massive roof-mounted air handling units and relatively low occupancy. A 60,000 sf facility may only have 8 workers for example. Do we need to account for the size of the building in our outdoor air ventilation supply, or if the total outdoor air entering the space is more than the required minimum per person does that suffice? I have no doubt that we are supply more outdoor air than needed for the 8-10 workers, but am concerned if the dilution by the large building size needs to be taken into account.

Thanks,