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Wearing Comfort of Disposable Respirators: Experimental Analysis of Structural Properties and Physiological Indexes
1From the Department of Safety Science and Engineering, School of Engineering and Technology, China University of Geosciences (Beijing), Beijing, China (J.G., X.W.); China Academy of Safety Science and Technology, Beijing, China (J.G., Q.L.); University of Science and Technology Beijing, Beijing, China (J.C.); SINOPEC Beijing Research Institute of Chemical Industry, Beijing, China (Y.L.); School of Economics and Management, Beihang University, Beijing, China (S.L).
Objective:
The aim of the study was to establish an evidence-based respirator selection framework mitigating occupational pneumoconiosis risks caused by poor compliance due to discomfort.
Methods:
This study assessed wearing comfort via two experiments on structural performance and physiological indicators. Participants wore different respirators and performed tasks (sitting/low-intensity vs simulated occupational task/medium-intensity) while parameters were measured. XGBoost-SHAP analysis method was used to identify key comfort determinants.
Results:
The wearing comfort was co-regulated by multiple factors in low-intensity task, with expiratory resistance most critically influenced heart rate, and inspiratory resistance-dominated facial temperature. Expiratory resistance became the decisive burden predictor in medium-intensity task. The valved models (9501V+/9502V+) minimized physiological strain, with the earband type performing better.
Conclusions:
This SHAP-based ergonomic tool enables protocolized respirator deployment by activity intensity, reducing work-related respiratory disease risks through clinically actionable safety guidelines.
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