PSI - Issue 77

ScienceDirect Structural Integrity Procedia 00 (2026) 000–000 Structural Integrity Procedia 00 (2026) 000–000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 77 (2026) 177–182

© 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers Abstract This paper focuses on the monitoring of cleanroom environmental quality as a function of air exchange rates. Addressing this topic is crucial for several reasons that impact various industries and have a direct effect on the environment. The most important reasons include product quality, health and safety, energy efficiency, structural integrity, and also compliance with standards and regulations. The aim of this paper is to analyze the influence of various air exchange rates on airborne particle concentration and temperature-humidity parameters, while considering the preservation of structural stability and functionality of cleanrooms. The research employs a combination of monitoring methods, including continuous measurement of particle concentration using optical particle counters and measurement of temperature and humidity using digital sensors. The results will provide quantitative data on the correlation between air exchange and environmental quality in cleanrooms, enabling the optimization of operational parameters and ensuring the required cleanliness class. It also focuses on identifying potential risks to structural integrity that may lead to damage to cleanroom components. © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Abstract This paper focuses on the monitoring of cleanroom environmental quality as a function of air exchange rates. Addressing this topic is crucial for several reasons that impact various industries and have a direct effect on the environment. The most important reasons include product quality, health and safety, energy efficiency, structural integrity, and also compliance with standards and regulations. The aim of this paper is to analyze the influence of various air exchange rates on airborne particle concentration and temperature-humidity parameters, while considering the preservation of structural stability and functionality of cleanrooms. The research employs a combination of monitoring methods, including continuous measurement of particle concentration using optical particle counters and measurement of temperature and humidity using digital sensors. The results will provide quantitative data on the correlation between air exchange and environmental quality in cleanrooms, enabling the optimization of operational parameters and ensuring the required cleanliness class. It also focuses on identifying potential risks to structural integrity that may lead to damage to cleanroom components. © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers Keywords: Cleanrooms; Air exchange; Environmental quality 1. Introduction Cleanrooms are specific environments with strictly controlled conditions that are essential for ensuring the quality, safety and reliability of processes in healthcare, pharmaceuticals, microelectronics and other industries. Although the International Conference on Structural Integrity Monitoring of cleanroom environmental quality as a function of air exchange Alexander Čaja 1 *, Martin Vantúch 1 , Andrej Kapjor 1 and Nikola Čajová Kantová 2 1 Department of Power Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitna 8215/1, 010 26 Zilina, Slovakia 2 Research Centre, University of Žilina, Univerzitna 8215/1, 010 26 Zilina, Slovakia International Conference on Structural Integrity Monitoring of cleanroom environmental quality as a function of air exchange Alexander Čaja 1 *, Martin Vantúch 1 , Andrej Kapjor 1 and Nikola Čajová Kantová 2 1 Department of Power Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitna 8215/1, 010 26 Zilina, Slovakia 2 Research Centre, University of Žilina, Univerzitna 8215/1, 010 26 Zilina, Slovakia Peer-review under responsibility of ICSI organizers Keywords: Cleanrooms; Air exchange; Environmental quality 1. Introduction Cleanrooms are specific environments with strictly controlled conditions that are essential for ensuring the quality, safety and reliability of processes in healthcare, pharmaceuticals, microelectronics and other industries. Although the

* Corresponding author. Tel.: +421 41 513 2863; fax: . E-mail address: alexander.caja@fstroj.uniza.sk * Corresponding author. Tel.: +421 41 513 2863; fax: . E-mail address: alexander.caja@fstroj.uniza.sk

2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers 2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers

2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers 10.1016/j.prostr.2026.01.024