[Bldg-sim] Acceptable CO2 levels

[Bonafe, Wes]

All:

 

Thanks to Mr. Dirkes.

 

Can anyone direct us to a study that says high CO2 in and of itself does
not cause health issues especially drowsiness?  We have asked for such a
study from those providing filtration prior to considering such
filtration on our projects.

 

I think CO2 is definitely related to energy use/modeling because you can
reduce levels of outside air if allowing higher CO2 levels.

 

Thanks:

 

Wes

 

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of James V
Dirkes II, PE
Sent: Monday, February 15, 2010 4:39 PM
To: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Acceptable CO2 levels

 

Dear Amit,

 

Keep in mind that ASHRAE's "acceptable" level of CO2 has almost nothing
to do with health.  You could describe it as more of a "body odor" or
"pleasantness" index.  When the ambient levels of CO2 exceed their
recommendation (~1000 ppm), people start to feel that the indoor air is
less pleasant or "stuffy".

 

Health does not start to be affected until CO2 exceeds 5000 ppm. (per US
EPA and ACGIH)

 

The Building Performance Team
James V. Dirkes II, P.E., LEED AP
1631 Acacia Drive NW
Grand Rapids, MI 49504
616 450 8653

 

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of amit
bhansali
Sent: Monday, February 15, 2010 4:24 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Acceptable CO2 levels

 

Hi all,

This question is not directly related to the group but i wanted to
throw it in as many of you might know the answer.

 

What is the acceptable CO2 level for a healthcare facility? Can i find
the number in any ASHRAE standards?

-- 
Thanks

Sincerely,
Amit Bhansali, M.S. , EIT

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/bldg-sim-onebuilding.org/attachments/20100216/0094d0ba/attachment-0001.htm>