10.34641/CLIMA.2022.113
Lastovets , Natalia
Sormunen, Piia
Ruuska, Ksenia
CO2 levels as an indicator of ventilation performance in me-chanical ventilated buildings
CLIMA 2022 conference
2022
2022-05-17
2022-05-17
2022-05-17
2022-05-17
en
Article
1-1-113
This work is licensed under a Creative Commons Attribution 4.0 International License.
The current COVID-19 pandemic has attracted considerable attention from the general public and researchers. To increase this resilience toward global pandemics, we urgently need a deeper understanding of effective protection strategies. During the COVID-19 pandemic, more evidence confirms that airborne transmission plays an essential role in spreading pathogens. The ventilation systems play an important role in removing pathogens from indoor air. The current paper focuses on examining the air ventilation performance of the existing building stock before Covid 19 pandemic. The study was carried out in mechanical ventilated 440 spaces in four different building types by comparing the obtained individual CO2 concentration data with the maxi-mum concentration values given by official regulations, recommendations and guides. The data was obtained from the property maintenance program for one month at 5-15 minutes intervals. The risk spaces were studied in detail, and the risk analysis was conducted by applying the Wells-Riley approach. The research proposes recommendations for utilising air ventilation systems in different applied cases.
CLIMA 2022 conference, 2022: CLIMA 2022 The 14th REHVA HVAC World Congress