UVC-LED-based face mask design and efficacy against common germs

Ali Gelir*, Faruk Asicioglu, Aysegul S. Yilmaz, Mert Kuskucu, Mehmet Doymaz, Onur B. Özdemir, Devrim Sarıbal, Seda Salman, Ömer F. Kadi, Sedat Özdemir, Sinem N. Seyhan

*Bu çalışma için yazışmadan sorumlu yazar

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Özet

During the Covid-19 pandemic, one of the best means of personal protection was using face masks. In this context, the World Health Organization has declared the attempts to produce masks inactivating airborne virus species a welcome initiative. This preliminary study aimed to prove that airborne germs passing through a mask filter cartridge can be destroyed by the rays emitted from UVC LEDs placed in such cartridge. We therefore designed such a face mask and tested the efficiency of UVC LEDs placed in its cartridge against common contaminants, gram-positive Staphylococcus aureus, gram-negative Pseudomonas aeruginosa, and the influenza A/Puerto Rico/8/1934 virus because of its similarity with SARS CoV-2. Eight UVC LEDs with a total power of 75 mW provided sufficient germicidal effect for all three germs. In terms of safety, ozone production released during UVC LED emission was negligible. Our findings are promising, as they show that well-designed UVC-based face masks can be effective against airborne germs, but further research on a greater sample may help us learn more and optimise such face masks.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)282-287
Sayfa sayısı6
DergiArhiv za Higijenu Rada i Toksikologiju
Hacim74
Basın numarası4
DOI'lar
Yayın durumuYayınlandı - 1 Ara 2023

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Finansman

This study was supported by the Scientific Research Projects of Istanbul University-Cerrahpasa (grant No. TSA-2018-32531).

FinansörlerFinansör numarası
Istanbul Üniversitesi-CerrahpasaTSA-2018-32531

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