Getting "enough" air into little-used corridors

I'm working on the certification of a completed project in Russia. Russian standards for OA requirements are 60 CFM/person, so I know that there is 'enough' total OA for the occupants (both for IEQp1 and c2). Our challenge arises in a couple of corridors that are designated 'critical zones' in the 62MZ calculators. In most cases, these corridors are only used by service people to access electrical closets and other service/'back of the house' areas. The building is already built, so putting in additional ductwork, etc. ain't gonna happen. (BTW, the design and as-builts showed the necessary equipment in place, but during Cx--now on pause--we found the discrepancy) First question, Do these seldom-used areas need to comply with the p1/c2 requirements? Second question, What are folks' thoughts about suggested fixes? One idea is to install some louvers in doors of adjacent rooms that have net negative air flow so that the corridors will receive the necessary air flow. If we use this strategy, would the use of louvers affect the air flow & how would we account for this? Another idea is to install a small exhaust fan at the end of the corridors to pull additional air in. In all cases, the corridors are partially adjacent to spaces with significant 'extra' supply air. Thanks in advance for any ideas.