17-03-2022 |

In March 2022, ASHRAE released a position document discussing the role of indoor CO2 in the context of building ventilation and IAQ. The positions address the use of CO2 as a metric of IAQ and ventilation, the impacts of CO2 on building occupants, the measurement of CO2 concentrations, the use of CO2 to evaluate and control outdoor air ventilation, and the relationship of indoor CO2 to airborne infectious disease transmission. The document recommends research into the impacts of CO2 on occupant health, comfort, and performance and on the application of indoor CO2 concentrations in building operation, as well as the development of guidance on the measurement and practical application of CO2 concentrations.

To download and read the full document please visit: https://www.ashrae.org/file%20library/about/position%20documents/pd_indoorcarbondioxide_2022.pdf

For more information, contact Andrew Persily at andyp@nist.gov.  

position document