Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2067/48582
Titolo: Design and Analysis of a Novel Ultraviolet-C Device for Surgical Face Mask Disinfection
Autori: Armentano, Ilaria 
Barbanera, Marco 
Belloni, Elisa
Crognale, Silvia 
Lelli, Davide
Marconi, Marco 
Calabro, G. 
Rivista: ACS OMEGA 
Data pubblicazione: 2022
Abstract: 
This paper deals with the design of a compact sanitization device and the definition of a specific protocol for UV-C disinfection of a surgical face mask. The system was designed considering the material properties, face mask shape, and UV-C light distribution. DIALux software was used to evaluate the irradiance distribution provided by the lamps emitting in the UV-C range. The irradiance needed for UV-C-decontaminated bacteria and virus, and other contaminating pathogens, without compromising their integrity and guaranteeing inactivation of the bacteria, was evaluated. The face mask's material properties were analyzed with respect to UV-C exposure in terms of physicochemical properties, breathability, and bacterial filtration performance. Information on the effect of time-dependent passive decontamination at room temperature storage was provided. Single and multiple cycles of UV-C sanitization did not adversely affect respirator breathability and bacterial filtration efficiency. This multidisciplinal approach may provide important information on how it is possible to correctly sanitize a face mask and, in case of shortage, safely reuse the face mask.
URI: http://hdl.handle.net/2067/48582
ISSN: 2470-1343
DOI: 10.1021/acsomega.2c03426
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