So it seems that as of July 2010, MERV 13 filters were only required on the outside supply air.

Our LEED project building has a large three floor basement parking (74900 ft2) with small enclosed lobbies (with self-closing doors) connecting occupants to the office floors above.

Hello there, For garage spaces that are designed for CO/NO₂ monitoring and have a neutral (Exhaust air – Supply air = 0) pressurization.

The conference center I'm working on has several small meeting rooms that have interior and exterior doors with the exterior doors leading to open public terraces.

Does anybody know wich option (roll out mats or permanent entryway systems ) is more efficient/clean for an hospital?

This credit states to exhaust hazardous spaces with no air recirculation.

We are developing a building which has a cleaning storage rooms and all the cleaning products are closed/sealed except for temporary use (1 use per day). We want to persue the Ashrae 62.1-2007 by u

OK, so a reviewer directed me to the 2011 ASHRAE HVAC Applications Handbook.

Context: The vestibule of our commercial building has entry/exit portals; but only leads users to an unenclosed (shell-like, meaning walls on two sides and two big openings to pass thru, and a trel