Hello,

Hey, I am working on a office project which will have no mechanical ventilation, and where it was decided to persue the flush out path for "IEQc4 Indoor Air quality Assessment".

If the humidity exceeds the range (higher than 60%) for a couple of hours, can the team simply add those few hours onto the flush-out, or does the flush-out have to start completely over at the tim

Should the penthouse be included in the gross area used to calculate the flush out volume?  Also, does it have to be specific on a system by system basis, such as the area of the floor served

In looking at the acceptable test methods for VOC in LEED v4 (and LEED v4.1) I have become a bit confused about when and why TO-15 might be allowed (or disallowed) for VOC testing.  If I have

What method of testing have people used to measure airborne PM-10 dust required as part of V4 IEQ Credit 3.2?

Is real time monitoring acceptable?

I have a main Fresh Aish Handling Unit (FAHU) that supplies fresh air to all FCUs.

New to v4.1

1.What is the expected duration for each sample location when using direct read?   I cannot find any reference in either the ISO methods listed or in LEED 

All of the individual VOC compounds in all sampling locations have passed the LEED criteria.

Dear all,

we are facing issues finding a laboratory with ISO/IEC 1702 accreditation to perform the indoor air quality tests.