The following studies demonstrate the importance of indoor air quality to student concentration and performance.
A.N. Myhrvold, E. Olsen, and O. Lauridsen
Proceedings, Indoor Air ‘96: The 7th International Conference on Indoor Air Quality and Climate, vol. 4, pp. 369-371, 1996
This study shows that students in classrooms with higher levels of CO2 were more likely to develop negative health symptoms. Students reported headaches, dizziness, tiredness, and difficulty concentrating at a higher rate when in classrooms with CO2 levels between 1500 and 4000 ppm than in classrooms with CO2 levels below 1000 ppm. Furthermore, students were able to respond more quickly to questions in classrooms with lower carbon dioxide levels. The scope of the study encompassed five school, 22 classrooms, and 500 pupils between the ages of 15 and 20.
Naziah Muhamad Salleh, Syahrul Nizam Kamaruzzaman, Raha Sulaiman, Naziatul Syima Mahbob
2nd International Conference on Environmental Science and Technology, IPCBEE vol.6, pp. 418-422, 2011
This study reviewed a wide variety of research in the field of indoor air quality to determine that most schools have inadequate outside air ventilation resulting in poor indoor air quality and that the poor indoor air quality is link to increased health issues and lower academic performance in students.
Zs. Bakó-Biró, N. Kochhar, D.J. Clements-Croome, H.B. Awbi and M. Williams
11th International Conference on Indoor Air Quality and Climate 2008, vol 6, pp 3346-3354, 2008
This studied showed that students are likely to be less attentive and have more trouble concentrating on instructions given by teachers in poorly ventilated classrooms. Changing the air exchange rate from 1.6±1.3 L/s per person to 6.8±1.4 L/s per person improved students’ reaction time by 3%, picture recall memory 8%, and word recognition by 15%. The improvements were even more pronounced for tasks that require more complex skills such as spatial working memory and word recognition. The scope of the study encompassed eight schools, 16 classrooms, and over 200 students.
R. Shaughnessy, U. Haverinen-Shaughnessy, A. Nevalainen, Moschandreas
IAQ 2007 Conference Proceedings
This study demonstrates the correlation between increased ventilation and better tests scores in math and reading. The study considered one classroom in each of 50 schools.
R. J. Shaughnessy, U. Haverinen-Shaughnessy, A. Nevalainen, D. Moschandreas
Indoor Air, vol. 16, pp. 465-468, 2006
This study shows a connection the classroom-level ventilation rate and math test results. Data was gathered on CO2 concentrations in fifth grade classrooms over a four to five-hour time span within a typical school day at 54 elementary schools. Comparing these readings to the math test scores of the students in the different classrooms resulted in a strong correlation between higher levels of ventilation and better math scores (P < 0.1).