Can anyone tell me where the Maximum Concentrations listed in the reference guide came from? Who established them, is there a document or website that can be visited? Thank you,

Currently doing a LEED v.2009 project and are looking to pursue IEQc3.2, Option 2. We got a question from the air quality tester asking about the specific requirements for testing.

We have 4 A/C Units providing air conditioning to a building, two of them are 100% OA units and two of them are providing the total air supply cfm (OA + recirulated air) is 7000 cfm and 8600 respec

Can furnitures be installed before the flush out?

I was the responsible party who ran the baseline IAQ testing event a a newly constructed 6,000 SF teaching facility. The TVOC results came back yesterday and were 4,900 ug/m3.

If a building is 25,000 sq feet, does that mean only one air sample needs to be taken? Or is it more dependant upon the number of HVAC systems/building area?

Hi! I was wondering how to interpret the term "contiguous floor area" in IEQ CREDIT 3.2 Option 2 Air Testing.

We are pursuing option 1 Flush Out. Our building includes a large datacenter.

Hello to everyboty and Merry Christmas, I have to make the flush out in a building which is mostly a Warehouse, that will be regularly occupied, with mechanical ventilation but no air conditioning.

1) Do mechanical rooms need air quality testing? 2) There is an air handler unit that supplies air to multiple floors.