ASHRAE Position Document on Indoor Carbon Dioxide

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.

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Feedback from the AIVC Webinar “COVID-19 Ventilation related guidance by ASHRAE and REHVA"

On November 20th 2020, the Air Infiltration and Ventilation Centre  with support from ASHRAE and REHVA organized the webinar “COVID-19 Ventilation related guidance by ASHRAE and REHVA". 406 people from 42 countries attended the webinar.

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REMARK:  The answers that follow were developed in November 2020. The recommendations by ASHRAE and REHVA may change over time.