In a new study, researchers used principal component analysis along with fluid dynamics simulation models to show the crucial importance of proper fit for all types of masks and how face shape ...

A team of researchers studying the effectiveness of different types of face masks has found that in order to provide the best protection against COVID-19, the fit of a mask is as important, or more ...

Researchers studying the effectiveness of different types of face masks have found that in order to provide the best protection against COVID-19, the fit of a mask is as important, or more important, ...