Multi Colored Masks of differing types

filtering

The Spectrum of Masks: Exploring Mask Options

Two years into the COVID-19 pandemic, a wide variety of mask options are available. How do they compare? Figure 1 shows masks arranged into a spectrum, roughly in order of their filtration efficiency.  Different masks serve different tasks. A mask can function as source control (my mask protects you) and/or personal protective equipment (PPE) (my […]

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