Indoor Carbon Dioxide Concentration: Effects on Subjective and Physiological Responses and Mental Work

The archival literature was reviewed to examine whether exposures to carbon dioxide (CO₂) at the concentrations typically occurring indoors would create the risks for building occupants as regards their comfort, health and cognitive performance. Laboratory experiments were performed with human subjects exposed to different levels of CO₂ lower than the occupational 8-hour limit of 5,000 ppm to further examine whether CO₂ should be considered a toxic pollutant at the levels typically occurring indoors. Should  the role of CO₂ in the context of ventilation and indoor air quality change? This presentation shows the results.