Performance evaluation of middle-layer micrometer and nanometer fibers on quality factor of five-ply commercial respirators and surgical masks
{{output}}
In the recent COVID-19 pandemic, N95 Filtering Facepiece Respirators (FFRs), surgical masks, and other protective face coverings played a key role in limiting disease transmission. FFRs and surgical masks were generally composed of three- and five-layered desi... ...
