My project is a high-rise residential tower.

Are MERV 13 filtration media used for temporary or permanent air handlers?

I'm trying to figure out the exhaust airflow rates required for chemical pollutant source rooms in a hospital (e.g. janitor's closets, copy rooms, etc.).

I have a university dorm project that has 1 or 2 residential units on ground level opening to the outside and I"m not sure how to advise on the walk off mat requirement.

Reading the reference guide, they say the following: "Incorporate permanent entryway system at all high-traffic exterior to interior access points to reduce...", also "employ permanent entryway sys

Hi, according to ID#100000426 MADE ON 07/19/2010, the wording changed from: "In mechanically ventilated buildings, install new air filtration media in regularly occupied areas prior to occupancy.

I want to raise the question again about underground garages and IEQc5. The credit clearly says that the exhaust rate should be 0.5 CFM/sf, I understand that.

How is average pressure differential calculated? What is the condition of door assumed to calculate above. Thanks!

Our Office building is ventilated with only 100% Outside Air Systems and thus there is no recirculation.

Hello, One of the LEED requirements of this credit is: "[For rooms with chemicals / hazardous gases], the exhaust rate must be at least 0.50 CFM per sq. ft.