It's an innovative solution that can be put into practice during this crisis, as it can be considered when there is a shortage of FFR.
The CDC puts it as an option (although it needs more research) when there is a crisis, some studies guarantee that the quality of the material may or may not be affected depending on the dose and the model of facial mask used.
Nebraska Medicine has implemented a protocol for UV irradiation of N95 respirators in the context of the COVID-19 pandemic based on the dose generally needed to inactivate other single-stranded RNA viruses on surfaces:
Lowe JJ, Paladino KD, Farke JD, et al. N95 Filtering Facepiece Respirator Ultraviolet Germicidal Irradiation (UVGI) Process for Decontamination and Reuse
These are some interesting studies that I would like share with all of you:
Lindsley, W. G., Martin Jr, S. B., Thewlis, R. E., Sarkisian, K., Nwoko, J. O., Mead, K. R., & Noti, J. D. (2015). Effects of ultraviolet germicidal irradiation (UVGI) on N95 respirator filtration performance and structural integrity. Journal of occupational and environmental hygiene, 12(8), 509-517.
Mills, D., Harnish, D. A., Lawrence, C., Sandoval-Powers, M., & Heimbuch, B. K. (2018). Ultraviolet germicidal irradiation of influenza-contaminated N95 filtering facepiece respirators. American journal of infection control, 46(7), e49-e55.
Heimbuch, B. K., Wallace, W. H., Kinney, K., Lumley, A. E., Wu, C. Y., Woo, M. H., & Wander, J. D. (2011). A pandemic influenza preparedness study: use of energetic methods to decontaminate filtering facepiece respirators contaminated with H1N1 aerosols and droplets. American journal of infection control, 39(1), e1-e9.
Also, you can learn more about decontamination from the CDC here:
Have you used this technique? share your experience with us!