Finding · as stated by the study, recorded by Coridum · status verified-machine
Finding F-0406
“Due to the small sample of mechanically ventilated spaces, it cannot be statistically significantly stated that the air quality parameters in mechanically ventilated spaces are better, but the results clearly show that both the maximum value and the average value during occupancy are lower in mechanically ventilated spaces than in naturally ventilated spaces.”
Structure
- Factor
- Carbon dioxide (CO₂)
- Intervention
- Mechanical ventilation
- Population
- school pupils and kindergarten children
- Setting
- classroom and kindergarten playroom, SI
- Study design
- measurements of CO2, air temperature and relative humidity during occupancy in 311 classrooms and playrooms of schools and kindergartens throughout Slovenia before energy-efficiency renovation and before the COVID-19 pandemic (302 naturally and 9 mechanically ventilated spaces), with a comparison of measured averages against a COVID-19 airborne transmission model (class 4)
- Sample
- 311 rooms
- Caveat
- the authors state that the difference cannot be confirmed statistically because only 9 spaces were mechanically ventilated
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.