Abstract:The coronavirus disease 2019 (COVID-19) pandemic has led to a significant shortage of personal protective equipment in multiple health care facilities around the world, with the highest impact on N95 respirator masks. The N95 respirator is a mask that blocks at least 95% of very small (0.3 μm) particles and is considered a standard for enhanced respiratory precautions. The N95 mask shortage has created a need for other options for nasal and oral respiratory protection with similar filtration efficiency and “me… Show more
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