Best Mask to Prevent COVID-19 and How Do Cloth, Disposable ...
Dec 19, 2020·Although N95 masks are the gold standard and were, until the spring of 2020, easily obtainable, good mask options exist, primarily certified KN95 masks and well-made, well-fitting, 3-layer cloth masks. Disposable surgical masks are also readily available but tend to leave gaps between the mask and face, reducing their usefulness.