We have a major renovation project where the renovations are phased to avoid full facility shut-down. We will temporarily relocate groups of occupants, capping off the old HVAC system and installing the new HVAC system during the renovation. It is only after an area has been renovated that the new HVAC system will be in use and renovated areas will be separated from unrenovated spaces by a plastic barrier, etc. Do we need to provide MERV 8 filtration media in these renovated areas once they are occupied and separated by plastic barrier, etc. from other areas under construction?