Decontamination of N95 masks against coronavirus: a scoping review
Abstract
Background
At present, it remains uncertain which method to decontaminate N95 is most suitable and should be recommended to healthcare professionals worldwide.
Objectives
The aim of this scoping review was to map and compile the available evidence about the effectiveness of decontaminating N95 masks against coronavirus.
Methods
We selected studies written in English assessing or discussing decontamination strategies of N95 masks against coronavirus. The search and study screening were performed in PubMed and SCOPUS by two independent researchers. A descriptive analysis was performed considering the study design of included studies.
Results
We included nineteen studies. Eight articles were letter to the editors, five were in vitro studies, three were literature reviews, and three were classified as other study designs. The use of vaporized hydrogen peroxide and ultraviolet irradiation were the strategies most cited. However, there is a lack of evidence and consensus related to the best method of N95 masks decontamination.
Conclusion
The evidence towards decontamination strategies of N95 masks against coronavirus remains scarce. Vaporized hydrogen peroxide and ultraviolet irradiation seem the current standard for N95 masks decontamination.
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