Hello - I'm working on a project in Japan, and the MERV rating system is not used here. They have filters that can perform equivalent to MERV 8 and MERV 13 filters, but they don't have the official MERV rating. Have you seen any projects use the approach of MERV equivalence as an approach for projects in Japan or in other international areas?
Megan, check out the credit language above. It was updated by USGBC a little while back to account for filtration standards used outside the U.S. You might find it helpful.