Section 410IAC33-4-2. Carbon dioxide limits

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   (a) Outdoor air shall be supplied to classrooms when occupied.

  (b) Carbon dioxide (CO₂) concentrations in the breathing zone shall never exceed seven hundred (700) ppm over the outdoor CO₂ concentration. An example calculation is as follows:

(outdoor CO₂ ppm) + 700 ppm = maximum CO₂

  (c) All specialty rooms shall meet the default values for minimum ventilation rates in breathing zones as published in the American National Standards Institute (ANSI)/American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Standard 62.1-2007 table 6-1. (Indiana State Department of Health; 410 IAC 33-4-2; filed Apr 13, 2011, 11:18 a.m.: 20110511-IR-410090682FRA)

                    
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