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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m trying to model a building using CO2 sensors.  Is
there a formula/algorithm that is acceptable?  This is a non-LEED building.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>

<p class=MsoNormal><b><font size=4 face=Arial><span style='font-size:14.0pt;
font-family:Arial;font-weight:bold'>Gregory C. Topp, P.E., LEED-AP</span></font></b><font
face=Arial><span style='font-family:Arial'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Roger D. Fields & Associates</span></font><font
face=Arial><span style='font-family:Arial'><o:p></o:p></span></font></p>

<p class=MsoNormal><u1:Street u2:st="on"><u1:address u2:st="on"><st1:Street
w:st="on"><st1:address w:st="on"><font size=2 face=Arial><span
  style='font-size:10.0pt;font-family:Arial'>4588 Kenny Road</span></font></st1:address></st1:Street></u1:address></u1:Street><font
face=Arial><span style='font-family:Arial'><o:p></o:p></span></font></p>

<p class=MsoNormal><u1:place u2:st="on"><u1:City u2:st="on"><st1:place w:st="on"><st1:City
 w:st="on"><font size=2 face=Arial><span style='font-size:10.0pt;font-family:
  Arial'>Columbus</span></font></st1:City><font size=2 face=Arial><span
 style='font-size:10.0pt;font-family:Arial'></u1:City>, <u1:State u2:st="on"><st1:State
 w:st="on">Ohio</u1:State></st1:State>  <u1:PostalCode u2:st="on"><st1:PostalCode
 w:st="on">43220-2777</u1:PostalCode></st1:PostalCode></span></font></st1:place></u1:place><font
face=Arial><span style='font-family:Arial'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>P:  (614) 451-2248</span></font><font face=Arial><span
style='font-family:Arial'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>F:  (614) 451-6628</span></font><font face=Arial><span
style='font-family:Arial'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>E-mail:  gtopp@rdfa.com</span></font><font
color=blue face=Arial><span style='font-family:Arial;color:blue'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;text-transform:uppercase'>This e-mail and any attached files
are confidential and protected by copyright, and may be legally privileged.</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>  If
you are not the intended addressee, any use of this e-mail — by copying,
distributing, or otherwise disseminating its contents — is strictly
prohibited.  If you have received this e-mail by mistake, notify the
sender immediately, and destroy all copies of this e-mail.  This e-mail
may not be secure, error-free, or free from malicious programs, such as
viruses.  Roger D. Fields & Associates shall not be liable for any
loss or damage that may result from any malicious programs, or from an
unintended, unauthorized, or unlawful use of this e-mail.</span></font><o:p></o:p></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>

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