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

  • Ali Gelir Physics Engineering Department, Istanbul Technical University, Istanbul, Turkey
  • Omer F. Kadi Physics Engineering Department, Istanbul Technical University, Istanbul, Turkey
  • Faruk Asicioglu Institute of Forensic Science and Legal Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
  • Aysegul Sen Yilmaz Istanbul University-Cerrahpasa, Forensic Science and Legal Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
  • Mert Kuskucu Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
  • Mehmet Doymaz Department of Medical Microbiology, BezmialemVakıf University, İstanbul, Turkey
  • Onur B. Ozdemir Physics Engineering Department, Istanbul Technical University, Istanbul, Turkey
  • Devrim Saribal Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
  • Seda Salman Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
  • Omer F. Kadi Physics Engineering Department, Istanbul Technical University, Istanbul, Turkey
  • Sedat Ozdemir Faculty of Medicine, Halic University, İstanbul, Turkey
  • Sinem N. Seyhan Physics Engineering Department, Istanbul Technical University, Istanbul, Turkey
Keywords: antibacterial mask, A/Puerto Rico/8/1934 influenza virus, corona virus, COVID-19, P. aeruginosa, protective mask, public health, S. aureus

Abstract

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.

Published
2023-11-06
How to Cite
1.
Gelir A, Kadi OF, Asicioglu F, Sen Yilmaz A, Kuskucu M, Doymaz M, Ozdemir OB, Saribal D, Salman S, Kadi OF, Ozdemir S, Seyhan SN. UVC-LED-based face mask design and efficacy against common germs. Arh Hig Rada Toksikol [Internet]. 2023Nov.6 [cited 2024Feb.25];74(4). Available from: https://arhiv.imi.hr/index.php/arhiv/article/view/1622
Section
Original article