Each year, more than 50 million K-12 students spend upward of 1,000 hours in U.S. classrooms. Even before the coronavirus pandemic, research was establishing suggestive links between academic performance and a classroom’s air quality, possibly due to the latter affecting students’ concentration and illness-related absences.
But those prior studies examined student performance only relative to carbon dioxide concentrations and the rate at which ventilation removed that CO2 from classrooms.
