Determination of tightness of the filtering half-mask adhesion to a user’s face

User Rating:  / 0
PoorBest 

Authors:


V.I.Golinko, orcid.org/0000-0001-6069-0515, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.V.Pavlychenko, orcid.org/0000-0003-4652-9180, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

S.I.Cheberiachko, orcid.org/0000-0003-3281-7157, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

O.O.Yavorska, orcid.org/0000-0001-5516-5310, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.


повний текст / full article



Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2022, (1): 102 - 106

https://doi.org/10.33271/nvngu/2022-1/102



Abstract:



Purpose.
To determine the correlation between adhesion tightness of filtering half-masks and anthropometric indices of employees faces.


Methodology.
To study tightness of the half-mask adhesion to a users face, a coefficient of NaCl aerosol test was determined in accordance with the requirements by DSTU EN 149:2017 (EN 149:2001+A1:2009, IDT). Volunteers took part in the testing selected in keeping with the parametric table divided into 12 settings along the face length and across its width. The tests were carried out using Respi and Standart respirators produced in lots by SPE Standart ltd.


Findings.
It has been identified that the tested filtering half-masks correspond to the standards by DSTU EN 149:2017 (EN 149:2001+A1:2009, IDT) and provide adequate protection of respiratory organs of users against harmful aerosols. It has been demonstrated that the required half-mask adhesion to a face depends upon the obturator design, half-mask geometry, and stretching force of a headband. It has been proved that employees with small faces require the instrumental verification of the preferred half-mask while selecting respiratory protective equipment. In turn, for users with large faces quality control is quite sufficient by means of any suitable method described by DSTU EN 529:2006 (EN 529:2005, IDT). Individuals with large faces have demonstrated the greatest values of the tightness coefficient of filtering half-mask adhesion.


Originality.
It is represented by the scientific substantiation of the tightness coefficient of filtering half-mask adhesion upon the length and width of users faces.


Practical value.
Mathematical expressions have been derived making it possible to calculate the tightness coefficient of the half-mask adhesion relying upon the face size. The abovementioned will help assess preliminarily protective characteristics of respirators without specific laboratory equipment.



Keywords:
penetration coefficient, inflow coefficient, half-mask, obturator

References.


1. Golinko, V., Cheberiachko, S., & Yavorska, O. (2018). Evaluation f the Protective Properties of Filtering Half-Masks by Measuring Pressure Difference. Nauka ta Innovatsii, 14(3), 46-54. https://doi.org/10.15407/scin14.03.046.

2. Lee, W., Yang, X., Jung, D., Park, S., Kim, H., & You, H. (2018). Ergonomic evaluation of pilot oxygen mask designs. Applied Ergonomics, 67, 133-141. https://doi.org/10.1016/j.apergo.2017.10.003.

3. Cheberiachko, S., Yavorska, O., Cheberiachko, Y., & Yavorskyi, A. (2018). Analysis of pressure difference changes in respirator filters while dusting. E3S Web of Conferences, 60, 00012. https://doi.org/10.1051/e3sconf/20186000012.

4. Lacko, D., Huysmans, T., Parizel, P.M., De Bruyne, G., Verwulgen, S., Van Hulle, M., & Sijbers, J. (2015). Evaluation of an anthropometric shape model of the human scalp. Applied Ergonomics, 48, 70-85. https://doi.org/10.1016/j.apergo.2014.11.008.

5. DSTU EN 529:2006 (EN 529:2005, IDT) Personal respiratory protection equipment. Recommendations concerning selection, use, and, servicing, and maintenance Instruction (EN 529:2005, IDT) (n.d.). Retrieved from https://webcache.googleusercontent.com/search?q=cache:S7GKasdQnX8J:https://zakon.isu.net.ua/sites/default/files/normdocs/dstu_derzhavniy_standart_ukrayini_529_2006.doc+&cd=5&hl=uk&ct=clnk&gl=ua.

6. Moldabayev, S., Adamchuk, A., Sarybayev, N., & Shustov, A. (2019). Improvement of open cleaning-up schemes of border mineral reserves. International Multidisciplinary Scientific GeoConference and Mining Ecology Management, SGEM, 19(1.3), 331-338.https://doi.org/10.5593/sgem2019/1.3/S03.042.

7. Shustov, O.O., Haddad, J.S., Adamchuk, A.A., Rastsvietaiev,V.O., & Cherniaiev, O.V. (2019). Improving the Construction of Mechanized Complexes for Reloading Points while Developing Deep Open Pits. Journal of Mining Science, 55, 946-953.https://doi.org/10.1134/S1062739119066332.

8. Yu, Y., Cheng, W., Yu, D., Rong, Y., Ping, J., Jiang, L., & Chen, W. (2012). Fit test and improvement of self-inhalation air-purifying dust respirator. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. May, 30(5), 348-351. Chinese. PMID: 22804987.

9. Tcharkhtchi, A., Abbasnezhad, N., Zarbini Seydani, M., Zirak, N., Farzaneh, S., & Shirinbayan, M. (2020). An overview of filtration efficiency through the masks: Mechanisms of the aerosols penetration. Bioactive Materials, 6(1), 106-122. https://doi.org/10.1016/j.bioactmat.2020.08.002.

10. Viscusi, D., Bergman, M., Zhuang, Z., & Shaffer, R. (2012). Evaluation of the benefit of the user seal check on N95 filtering facepiece respirator fit. Journal of Occupational and Environmental Hygiene, 9(6), 408-416. https://doi.org/10.1080/15459624.2012.683757.

11. Zacharopoulos, G., Manios, A., Kau, C., Velagrakis, G., Tzanakakis, G., & de Bree, E. (2016). Anthropometric Analysis of the Face. Journal of Craniofacial Surgery, 27(1), e71-e75. https://doi.org/10.1097/SCS.0000000000002231.

12. Spies, A., Wilson, K., & Ferrie, R. (2011). Respirator fit of a medium mask on a group of South Africans: a cross-sectional study. Environmental Health, 10, 17. https://doi.org/10.1186/1476-069X-10-17.

13. Wong, K., Keeling, A., Achal, K., & Khambay, B. (2019). Using three-dimensional average facial meshes to determine nasolabial soft tissue deformity in adult UCLP patients. The Surgeon, 17(1), 19-27. https://doi.org/10.1016/j.surge.2018.04.006.

14. Bugaighis, I., Tiddeman, B., Mattick, C., & Hobson, R. (2014). 3D comparison of average faces in subjects with oral clefts. European Orthodontic Society, 36(4), 365-372. https://doi.org/10.1093/ejo/cjs060.

15. Shan, Z., Hsung, R., Zhang, C., Ji, J., Choi, W., Wang, W., , & Khambay, B. (2021). Anthropometric accuracy of three-dimensional average faces compared to conventional facial measurements. Scientific Reports, 11, 12254. https://doi.org/10.1038/s41598-021-91579-4.

16. Khomenko, O., Kononenko, M., & Lyashenko, V. (2018). Safety Improving of Mine Preparation Works at the Ore Mines. Bezopasnost Truda v Promyshlennosti, (5), 53-59. https://doi.org/10.24000/0409-2961-2018-5-53-59.

17. Clase, C., Fu, E., Ashur, A., Beale, R., Clase, I., Dolovich, M., , & Carrero, J. (2020). Forgotten technology in the COVID-19 pandemic: Filtration properties of cloth and cloth masks-A narrative Rreview. Mayo Clinic Proceedings, 95, 2204-2224. https://doi.org/10.1016/j.mayocp.2020.07.020.

18. Kim, M., Bae, S., Kim, J., Park, S., Lim, J., Sung, M., & Kim, S. (2020). Effectiveness of surgical, KF94, and N95 respirator masks in blocking SARS-CoV-2: a controlled comparison in 7 patients. Infectious Diseases, 52, 908-912. https://doi.org/10.1080/23744235.2020.1810858.

19. Khomenko, O., Tsendjav, L., Kononenko, M., & Janchiv, B. (2017). Nuclear-and-fuel power industry of Ukraine: production, science, education.Mining Of Mineral Deposits,11(4), 86-95. https://doi.org/10.15407/mining11.04.086.

 

Visitors

4529667
Today
This Month
All days
269
65440
4529667

Guest Book

If you have questions, comments or suggestions, you can write them in our "Guest Book"

Registration data

ISSN (print) 2071-2227,
ISSN (online) 2223-2362.
Journal was registered by Ministry of Justice of Ukraine.
Registration number КВ No.17742-6592PR dated April 27, 2011.

Contacts

D.Yavornytskyi ave.,19, pavilion 3, room 24-а, Dnipro, 49005
Tel.: +38 (056) 746 32 79.
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
You are here: Home Archive by issue 2022 Content №1 2022 Determination of tightness of the filtering half-mask adhesion to a user’s face