Medical Radiology and Radiation Safety. 2025. Vol. 70. № 6
DOI:10.33266/1024-6177-2025-70-6-136-142
A.Yu. Bushmanov, V.P. Zinoviev, O.A. Lebedeva, V.V. Gudkova, A.G. Seitova,
I.O. Usachev, E.G. Zaripova, T.P. Kuznetsova, A.O. Lebedev, M.R. Popchenko
Comparative Tests of Aerosol Permeability
of Fpp and Meltblown Materials Using Nacl Test Aerosol
A.I. Burnazyan Federal Medical Biophysical Center, Moscow, Russia
Contact person: V.P. Zinoviev, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
Relevance: One of the most important protective characteristics of personal respiratory protection equipment (PPE) is the permeability of the anti-aerosol filter (PAF) and the coefficient of suction and permeability of the PPE. To determine these characteristics, PAF and SIZOD tests are carried out using test aerosols, usually obtained by pneumatic spraying of a liquid or by condensation of supersaturated vapor of a volatile substance, such as mineral oil. These aerosols are polidisperse, that is, they have a fairly wide range of particle sizes. Currently, the most common method for assessing the protective properties of materials for SIZOD and products made from them is to measure the concentration of the test aerosol before and after the sample of the filter material when the test aerosol passes through the test sample. When using this method, the most widespread is the use of test aerosols based on mineral oil (oil mist) or microcrystals of table salt (NaCl) obtained by evaporation of mist droplets of its solution. It is known that the smallest particles with sizes less than 0.3 microns are the most harmful and difficult to remove from the body. Since the mass fraction of large particles in the test aerosol is significantly higher than the mass of small ones, even the protection coefficient of 99.9, which is extremely close to unity, is not fully informative, since it does not reflect the protective properties of the material in the field of small particle sizes.
Purpose: The study of the protective properties of materials for SIZOD in the range of small sizes of aerosol particles as the most harmful, as well as the comparison of test results for this indicator of different materials used in the production of SIZOD, is an urgent task, which to a certain extent is being solved in the current study.
Material and methods: Filter materials FPP-15-1,5 and Meltblown were tested to determine protection and penetration factors in accordance with GOST 12.4.119-82.
Results and discussion: The results of the conducted studies have shown the fundamental possibility of determining the material protection coefficient in various size classes of aerosol particles. Evaluation of the protective properties of materials using the spectral density of particles by their size will allow us to identify materials with the highest protective properties and with the lowest to facilitate the selection of personal respiratory protection equipment by enterprises with harmful production conditions.
Conclusions: The results of the conducted research have shown the practical value of using the method of assessing the permeability of aerosol particles based on their size spectrum, as they allowed us to scientifically select materials with the highest protective properties in terms of aerosol permeability.
Keywords: personal protective equipment, aerosol particles, aerosol permeability, protection coefficient, size spectrum
For citation: Bushmanov AYu, Zinoviev VP, Lebedeva OA, Gudkova VV, Seitova AG, Usachev IO, Zaripova EG, Kuznetsova TP, Lebedev AO, Popchenko MR. Comparative Tests of Aerosol Permeability of Fpp and Meltblown Materials Using Nacl Test Aerosol. Medical Radiology and Radiation Safety. 2025;70(6):136–142. (In Russian). DOI:10.33266/1024-6177-2025-70-6-136-142
References
1. GOST 12.4.119-82 Personal Respiratory Protective Equipment. Method for Assessing Protective Properties for Aerosols (In Russ.).
2. GOST 12.4.028-76 Respirators SHB-1 Lepestok. Technical Conditions (In Russ.).
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5. Samoylov A.S., Udalov Yu.D., Rubtsov V.I., Zinov’yev V.P., Olenina I.V., Timoshenko A.N., Andreyev V.V., Bushmanov Yu.A., Belousov A.V., Kretov A.S., Seleznev N.A., Smirnov Yu.Ye. Radiation Treatment of Protective Suits and the Choice of Personal Protective Equipment for Personnel in Contact with Coronavirus Infection. Meditsinskaya Radiologiya i Radiatsionnaya Bezopasnost’ = Мedical Radiology and Radiation Safety.
PDF (RUS) Full-text article (in Russian)
Conflict of interest. The authors declare no conflict of interest.
Financing. The study had no sponsorship.
Contribution. Article was prepared with equal participation of the authors.
Article received: 20.07.2025. Accepted for publication: 25.08.2025.