Finding F-0947

“The TRs (TR-A, TR-B and TR-C) consistently maintained lower CO concentrations compared to the LHs (LH-A, LH-B and LH-C), with levels generally remaining below 0.8 ppm across the measurement period.”

Classroom indoor air quality and its association with sick Building syndrome (SBS) (2025). Sci Rep. Page 6. CKB 1426

Structure

Factor: Carbon monoxide (CO)
Population: university students
Setting: university classroom, MY
Study design: cross-sectional study in a Malaysian university: indoor air quality measured in three lecture halls and three tutorial rooms with a questionnaire on sick building syndrome symptoms among the students (class 4)
Effect: other 0.8
Caveat: an upper bound rather than a mean, recorded under 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.