As more and more health experts urge Americans to swap their cloth masks for either a N95 or KN95 mask, others are explaining how often to reuse the single mask. Omicron is far more transmissible than ...

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 ...

Since the Covid-19 pandemic began last year, face masks and other personal protective equipment have become essential for health care workers. Disposable N95 masks have been in especially high demand ...