I am working on a government project and half of our building is a garage space. 1. Do we have to put 10 ft long floor mats at each exterior door to the garage?

in our hotel project all laundry is outsourced to an external laundry service but we have a small area for back-up laundry requirements for the odd items that may have to be laundered.

We are contemplating the use of a rubber walk-off mat for a high traffic area at a winter resort with lots of snow.

Has anyone submitted a residential project that has pursued the intent of the MERV 13 filters in an alternate compliance path?