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Indoor carbon dioxide (CO2) has long been discussed in the context of ventilation and indoor air quality (IAQ), focusing on the impacts of CO2 on building occupants, how CO2 concentrations relate to perception of bioeffluents, the use of indoor CO2 to estimate ventilation rates and demand control ventilation. While measured indoor CO2 concentrations are rarely close to health guidelines, much confusion has resulted regarding CO2 in ventilation and IAQ standards. Is there anything in recent research that indicates that we should revise ASHRAE's approach to CO2 in standards and guidelines?

• Indoor Carbon Dioxide Concentrations in Ventilation and Indoor Air Quality Standards
  Andrew Persily, Ph.D., Member
• Indoor Carbon Dioxide Concentration: Effects on Subjective and Physiological Responses and Mental Work
  Pawel Wargocki

Run Time: 60 mins.

Citation: ASHRAE Seminar Recordings, 2016 ASHRAE Annual Conference, St. Louis, MO