Filtration performance of face masks and facepiece respirators used during COVID-19 pandemic
Source abstract
Abstract
The rapid spread of SARS-CoV-2 has created challenges for societies, healthcare settings, businesses, and institutions. To curb virus transmission, various measures like lockdown, social distancing, hand hygiene, and using appropriate personal protective equipment (PPEs), including face masks, have been recommended. Face masks and facepiece respirators are considered to act as barriers against microbial transmission from person to person. In this study, we selected barrier materials used during the COVID-19 pandemic that included four non-medical face masks and three facepiece respirators. Facepiece respirators were distributed by the U.S. Administration through pharmacy outlets. Results showed that facepiece respirator R95 has the highest filtration efficiency (above 99%), which remains more or less the same over different particle sizes. The N95 respirator’s filtration efficiency was lower than that of R95, but its barrier resistance was lower than that of the R95, indicating that it can be comfortably used over longer duration. Face masks were evaluated using ASTM F 3502-24 for their barrier performance. At 0.1 and 0.3 µm particle size, domestically manufactured masks met the standard for higher performance. Interestingly, the results indicate that quality of raw materials and manufacturing standards play important roles, as is evident in domestically manufactured face mask and facepiece respirators.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Infection Control and Ventilation · COVID-19 and healthcare impacts · COVID-19 diagnosis using AI
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (51)
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