Finding F-0464

“The maximum CO2 concentration value recorded in one of the tests was 808 ppm.”

Miranda Ventilation conditions and their influence on thermal comfort in examination classrooms in times of COVID-19. A case study in a Spanish area with Mediterranean climate (2022). International journal of hygiene and environmental health. Page 2. CKB 8398

Structure

Factor: Carbon dioxide (CO₂)
Intervention: Natural ventilation
Population: university students during examinations
Setting: examination classroom, ES
Study design: case study of natural ventilation through windows during on-site winter examinations in classrooms of the University of Extremadura (Badajoz, Spain) during the COVID-19 pandemic: in situ CO2, temperature and humidity measurements in a series of examination tests with different window-opening strategies (class 4)
Effect: other 808
Averaging time: maximum within one test
Caveat: maximum recorded as measure other

A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.