Editor's note: Find the latest COVID-19 news and guidance in Medscape's Coronavirus Resource Center. Certain modifications to face masks, such as double masking and adjusting the fit more tightly ...

For the last few years Kevin Ngo has spent his nights and weekends developing a new kind of reusable face mask. After calling in favors from friends all over Silicon Valley, the resulting Flo Mask is ...

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 ...

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