Designing of Half-Masks of Filtering Respirators

TitleDesigning of Half-Masks of Filtering Respirators
Publication TypeJournal Article
Year of Publication2020
AuthorsCheberiachko, SI, Cheberiachko, Yu.I, Shaikhlislamova, IA
Short TitleSci. innov.
SectionThe World of Innovations
Introduction. Diseases of the respiratory system head the list of occupational diseases. They are caused by pollution of the working zone air with harmful aerodispersed particles, use of improper individual respiratory protective devices.
Problem Statement. The efficiency of filtering respirators depends on two components: time of protective effect and insulating properties of half-masks. This requires conducting relevant research in order to design the half-masks which allow providing high insulating properties.
Purpose. Improvement of protective effect of filtering respirators by improving their design with respect to anthropometric peculiarities of workers’ faces.
Materials and Methods. To develop the surface of a half-mask, the equation of free energy of a bent optional plate was used, which is outlined with a two-dimensional spline-surface, its unknown coefficients are defined by the method of proportional parts based on the data of three dimensional coordinates of the key points of anthropometric facial features.
Results. Regularities of forming the surface of half-masks were defined based on the data of three dimensional coordinates of the key points of anthropometric facial features. A method was developed for measuring the temperature of obturator surface with a thermal imagery device based on output signal processing, which allows carrying out on-line control of areas where gaps occur along the obturation line as well as defining deterioration of insulating properties of a dust mask and estimating its protection factor.
Conclusion. The algorithm of half-mask design was developed with respect to the results of 3D scanning of faces, digital models of head developing as well as half-masks surface and obturator construction associated with them. The reasonable parameters of filtering box, size of ioutlet for providing the minimum pressure difference and regular dust distribution on filtering surface were determined.
Keywordshalf mask, insulation coefficient, model, obturator, respirator

1. Strilets, V. M., Vasyliev, M. V. (2010). Analysis of protective properties individual protective devices designed for working under conditions of toxic release. Scientific Works of Kharkiv National Air Force University, 1(23), 197–200 [in Ukrainian].
2. Kirillov, V. F., Buchnev, A. A., Chirkin, A. V. (2013). On individual respiratory organs protective devices of workers. FSBSI "RI of Occupational Health", 4, 25-31.  [in Ukrainian].
3. Kovacs, L., Immermann, A., Brockmann, G. (2006). Three-dimensional recording of the human face with a 3D laser scanner. J. Plast. Reconstr. Aesthet. Surg., 59(11), 1193-1202.
4. Ennan, A. A., Belinskii, Ye. Ye., Klimova, L. V., Baidenko, V. I. (2001, September). Mathematical modeling of constructions of a lightened respirator of ‘Snezhok’ type. Works of the 1st International research and practical conference “Environmental protection, health, safety in welding engineering” (15 Sept. 2001, Odessa). Odessa [in Ukrainian].
5. Tretiakova, L. D., Podobed, I. M., Zubkov, A. A. (2014). New individual protective devices for performing emergency-rescue works. Information bulletin on labor occupational safety, 1(72), 98–103 [in Ukrainian].
6. Kovaliov, P. A., Strilets, V. M., Yelizarov, O. V., Bezuhlov, O. Ye. (2005). Basics of developing and applying devices on pressurized air. Kharkiv: ATsZU [іn Ukrainian]. 
7. Andrusiak, Z. V., Bolibrukh, B. V., Loik, V. B., Krasutskaya, I. M. (2015). An issue of developing effective individual protective devices of rescuers in an emergency at hazardous chemical sites. Zeszyty Naukowe SGSP, 56(4), 111–134.
8. Ostapenko, N. V., Lutsker, T. V., Rubanka, A. I., Kolisnichenko, O. V. (2016). Generalized systematization of special-purpose products. Theory and practice of design, 10, С. 122–143 [in Ukrainian].
9. Kolosnychenko, M. V., Zubkova, L. I., Pashkevych, K. L., Polka, T. O., Ostapenko, N. V., Vasilieva, I. V., Kolosnichenko, O. V. (2014). Ergonomics and design. Designing modern clothing: learning guide. Kyiv [in Ukrainian].
10. Cheberiachko, S. I., Radchuk, D. І., Cheberiachko, Yu. I., Frundin, V. Yu. (2016). Experimantal research on influence of air humidity on protective properties of electrete filters. Mining electromechanics and automation, 1(96), 59–66 [in Ukrainian].
11. Vasyliev, M. V., Strilets, V. M., Kovrehin, V. V. (2010). Analysis of tightness of a complex of individual protective devices of the first type. Problems of emergences, 11, 29–38 [in Ukrainian].
12. Anderson, N. J., Cassidy, P. E., Janssen, L. L., Dengel, D. R. (2006). Peak Inspiratory Flows of Adults Exercising at Light, Moderate and Heavy Work Loads. Journal of the International Society for Respiratory Protection, 23, 53–61.
13. Eshbaugh, J. P., Gardner, P. D., Richardson, A. W. (2009). №95 and P100 respirator filter efficiency under high constant and cyclic flow. Journal Occup. Environ. Hyg., 6(1), 52–61.
14. Haruta, H., Honda, T., Eninger, R. (2009). Experimental and theoretical investigation of the performance of №95 respirator filters against ultrafine aerosol particles tested at constant and cyclic flows. Journal Int. Soc. Respir. Prot., 25, 75–88.
15. Potapenko, I. A. (2010). Hydrodynamic resistance of a filtering element of a dust respirator. Mine-rescue work: Collected Scientific Works, 47, 133–141 [in Ukrainian].
16. Cheberiachko, S. I., Radchuk, D. І., Cheberiachko, Yu. I. (2016). Methods for selecting testers for studying filtering respirators. Metrology and devices, 2, 36–40 [in Ukrainian].
17. Oestenstad, R. K., Dillion, H. K., Perkins, L. L. (1990). Distribution of faceseal leak sites on a half-mask respirator and their association with facial dimensions. American Industrial Hygiene Association Journal, 5(51), 285-290.
18. Oestenstad, R. K., Perkins, L. L. (1992). An assessment of critical anthropometric dimensions for predicting the fit of a halfmask respirator. American Industrial Hygiene Association Journal, 53(6), 639-644.
19. Oestenstad, R. K., Elliot, L. J., Beasley, T. M. (2007). The effect of gender and respirator brand on the association of respirator fit with facial dimensions. Journal of Occupational and Environmental Hygiene, 4(12), 923-930.
20. Brazile, W. J., Buchan, R. M., Sandfort, D. R., Melvin, W., Johnson, J. A., Charney, M. (1998). Respirator fit and facial dimensions of two minority groups. Journal of Occupational and Environmental Hygiene, 13, 233-237.
21 Han, D. H., Choi, K. L. (2003). Facial dimensions and predictors of fit for half-mask respirators in Koreans. AIHA J., 64(6), 815-822.
22. Zhuang, Z., Bradtmiller, B., Shaffer, R. E. (2007). New respirator fit test panels representing the current U.S. civilian work force. Journal of Occupational and Environmental Hygiene, 4(9), 647-659.
23. Alma Maria Jennifer A. Gutierrez, Melissa D. Galang, Rosemary R. Seva, Michelle C. Lu, Diana Rose S. (2014). Designing an improved respirator for automotive painters. International Journal of Industrial Ergonomics, 44(1), 131-139.
24. Blanz, V., Vetter, T. (1999). A morphable model for the synthesis of 3D faces. In: 26th Annual Conference on Computer Graphics and Interactive Techniques, ACM Press, Los Angeles, 187-194. 
25. Ashkenazy, A. V. (2003). Basic theory and computational algorithms. Tver: Pub. house of the Tver State University.
26. Ogar, P. M., Gerasimov, S. V., Sukhov, O. Yu., Glinov, S. N. (2001). Modelling of mass-transfer through the jointing of rough surface. Mathematic modelling, numerical methods and programme systems: Interuniversity thematic collection of works/SPbGASU, 7, 108–116 [in Russian].
27. Ogar, P. M., Tarasov, V. A., Daineko, A. A. (2010). On certain common regularities of elastoplastic implementation of a spherical indenter. Systems. Methods. Technologies, 4(8), 38–43 [in Russian].
28. Zhuang, Z., Coffey, C. C., Jensen, P. A., Campbell, D. L., Lawrence, R. B., Myers W. R. (2004). Correlation Between Quantitative Fit Factors and Workplace Protection Factors Measured in Actual Workplace Environments at a Steel Foundry. American Industrial Hygiene Association Journal, 64 (6), 730–739.