Volume 14, Issue 1 (4-2018)
HSR 2018, 14(1): 107-113 |
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Zare M, Rismanchain M. Performance Evaluation of Respiratory Masks Used by Refractory Workers in Controlling Exposure against Particulate Pollutants in a Steel Factory. HSR 2018; 14 (1) :107-113
URL: http://hsr.mui.ac.ir/article-1-991-en.html
URL: http://hsr.mui.ac.ir/article-1-991-en.html
1- MSc Student, Student Research Committee AND Department of Occupational Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
2- Assistant Professor, Department of Occupational Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
2- Assistant Professor, Department of Occupational Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
Abstract: (945 Views)
Background: Dust is one of the harmful factors in some working environments. One of the ways to reduce exposure to dust in these environments, is to use air purifying masks. Therefore, the purpose of this study was performance evaluation of respiratory masks used by refractory workers in controlling exposure against particulate pollutants in a steel factory.Methods: The performance of three types of masks against particle contamination was evaluated in this study. To evaluate the performance, simultaneously the concentration of particles in inside and outside of the mask during the work was measured; then, the percentage of efficiency and percentage of penetration rate were calculated.Findings: The mean penetration rate percentage in the FFP3 mask was higher than FFP2 and elastomeric half-mask with a P100 filter. Performance evaluation of FFP2 and FFP3 masks based on of consumption time showed that during the first few hours of consumption, the efficiency decreased, and then increased.Conclusion: Resistance surface of filter and air penetration from free space between face and around the mask is the main factor of poor performance of the masks.
Type of Study: Research |
Subject:
education health and promotion
Received: 2020/07/16 | Accepted: 2018/04/15 | Published: 2018/04/15
Received: 2020/07/16 | Accepted: 2018/04/15 | Published: 2018/04/15
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