Carbon Dioxide (CO2) Monitoring - EQc1 Intent To provide capacity for ventilation system monitoring to help promote occupant comfort and well-being Requirements Install a permanent carbon dioxide (CO2) monitoring system that provides feedback on space ventilation performance in a form that affords operational adjustments. Refer to the CO2 differential for all types of occupancy in accordance with ASHRAE 62-2001, Appendix C. Configure all monitoring equipment to generate an alarm when carbon dioxide (CO2) levels vary by 10% or more from the design values. CO2 monitors must be between 1-2 m (3-6 ft) above the floor. One CO2 sensor may be used to monitor multiple non-densely occupied spaces if the natural ventilation design uses passive stack(s) or other means to induce airflow through those spaces equally and simultaneously without intervention by building occupants The intent and requirements described on this webpage are paraphrased from the copyrighted works of the USGBC "LEED 2009 for New Construction and Major Renovations Rating System November 2008", and, the CAGBC "LEED Rating System & Addendum for New Construction and Major Renovations LEED Canada-NC version 1.0 December 2004", and are presented here strictly for informational purposes and are not intended to supplant or be used in place of the original copyrighted works.