Finding F-0043

“Elevated levels occurred in all buildings, although schools with central mechanical ventilation had lower concentrations and variability than schools without.”

Ge Decision tools for schools using continuous indoor air quality monitors: a case study of CO2 in Boston Public Schools (2025). Lancet Reg Health Am. Page 1. CKB 1363

Structure

Factor: Carbon dioxide (CO₂)
Intervention: HVAC systems
Population: students
Setting: classroom, US
Study design: continuous monitoring of Boston public school classrooms over a school year, 245 million measurements (class 4)
Effect: difference

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.