Bacterial filtration efficiency of different masks

Košir, Tamara (avtor), Fric, Katja (avtor), Filipić, Arijana (avtor), Kogovšek, Polona (avtor)

Face coverings, such as surgical masks and respirators, have an important role in preventing bacterial and viral transmission, especially during a global pandemic like COVID-19. Therefore, to secure their availability, new manufacturers and the use of novel materials must be encouraged. However, masks and their materials must first be properly tested for safety and efficiency, as required by the relevant standard, valid in a specific region. All standards prescribe determination of the bacterial filtration efficiency (BFE) of masks. In this study, we report the establishment of a test method for the BFE of face masks in accordance with European standard EN 14683:2019, by which we tested 52 samples, each composed of 3 to 5 subsamples, of surgical and cloth masks, respirators, filters, and mask materials. Forty-seven out of the 52 samples reached a BFE above 75 %. Of these, 16 samples had a BFE of 75 % to 95 %, 3 had a BFE of 95 % to 98 %, while 28 reached a filtration efficiency above 98 %. Our findings show that all tested samples provided some level of protection, most of which met the requirements for the national or European market.

• Jezik: Angleški jezik
• Ključne besede: bacterial filtration efficiency, face coverings, masks, respirators, Andersen Cascade Impactor, EN 14683:2019
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Datum objave: 01.04.2022
• Leto izida: 2022
• Št. strani: Str. 225-232
• Številčenje: Vol. 68, no. 4, spec. iss.: SARS-Cov-2
• PID: 20.500.12556/RUL-136361
• UDK: 579
• ISSN pri članku: 0039-2480
• DOI: 10.5545/sv-jme.2022.34
• COBISS.SI-ID: 105952259
• Datum objave v RUL: 26.04.2022

Gradivo je del revije

• Naslov: Strojniški vestnik
• Skrajšan naslov: Stroj. vestn.
• Založnik: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 24.03.2022
• Vezano na: Accepted for publication

Sekundarni jezik

• Jezik: Slovenski jezik
• Naslov: Določanje učinkovitosti bakterijske filtracije različnih tipov mask
• Ključne besede: učinkovitost bakterijske filtracije, zaščitne maske, EN 14683, šest stopenjski Andersenov vzročevalnik

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P4-0165
• Naslov: Biotehnologija in sistemska biologija rastlin