Does there have to be a MERV13 filter on makeup air units supplying outdoor air for parkade exhaust?

Dear all, is this credit related to all: • regularly occupied OR • occupied OR • all outdoor air ventilated spaces? When following the intent of the credit only occupied spaces would make sense t

As we all know LEED requires MERV 13 filters for all outdoor air intakes. We are currently working on a manufacturing plant in a desert region that mostly operates with evaporative coolers.

Have any projects used electronic air filters (in conjunction with MERV 8 filters) as an alternative compliance path for this credit?

The first paragragh in your "birds eye view" states that "As of November 2010, a USGBC addendum removed a requirement for return air circulation to also have MERV 13 filtration." Below is the Novem

I am working on a project with several large outdoor air handlers. Each air handler has a system of MERV 8 pre-filters followed by MERV 13 main filters.

Has anyone ever had an issue with MERV 13 filters not maintaining original quality and performance levels? Also, I cant find if this credit requires active monitoring of any sort that would capture

Our building has existing MERV 8. The existing HVAC does not have the capability to to take MERV-13 filters. Can we get this credit if we have phase-out plan or need to replace all at once?