We are working on a Core and Shell Office project where there is a central air circulation system with natural ventilation, which has permanent openings in the facades, 24 hours a day so the air flow is constant. The private areas work with mechanical ventilation by injecting the outside air from the corridor mentioned above. We want to know if this air entered into the private areas from the common central area can be considered 100% outdoor air and would meet the requirements of the prerequisite or if it is necessary to implement a different system of external air injection.

Thanks in advance.