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Does Increased Ventilation Really Improve Cognitive Performance?

If the results of the study are scientifically valid, they could lead to major modifications of HVAC/ventilation design practices. A reorganization of data, however, raises questions about whether the data support the conclusions in the report or any firm conclusion at all.


In October 2015, a report1 detailing a study designed to evaluate the effect of ventilation, volatile organic compounds (VOCs), and carbon dioxide (CO2) on workers’ cognitive performance was published. The researchers used a reportedly objective measure, as opposed to most earlier studies’ occupant opi

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