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CI-2009 IEQc1:Outdoor Air Delivery Monitoring

CO2 in small space / private offices

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CT G
LEEDuser Premium Member
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Dear all, Once I saw a LEED Interpretation stating that small spaces, or private offices, could be exempt of installing CO2 sensors to comply with this credit, for CI only, not to NC. I can't find the LI now. Can someone help me with the number of the LI? And is there a similar interpretation exempting us to install CO2 sensor in private offices for NC? Regards, Anderson

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Fri, 02/19/2016 - 13:54

I'm not aware of an LI, but you only need sensors in densely occupied spaces of 25 people within 1000 s.f. For a 100 s.f. office to need a sensor it would have to accommodate 3 people. Is that your situation?
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CT G
LEEDuser Premium Member
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Fri, 02/19/2016 - 17:08

Thank you for your reply Michelle. Yes, our situation is similar to what you described. We have a 25 s.f. space with one person.

Fri, 02/19/2016 - 21:35

I did a little digging and the only thing I found was a post in LEEDUser saying that there is not exception for CO2 monitors is rooms with fewer than 10 people. (Vamshi Gooje Nov 21 2011 in response to a question from Dylan) Though I'm not sure what the source of this information is. I think your situation is worth submitting a CIR. It seems a little overkill to provide a CO2 sensor for such a small space serving one person. However also consider how long this person is in this 5'x5' space. Is it really regularly occupied or just used intermittently? If I was stuck in a 25 sf space all day I'd feel better knowing that fresh air was being brought in if the CO2 levels were elevated.

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