By now most of us have settled on a preferred cloth mask to protect ourselves and others from coronavirus. The right cloth mask, properly fitted, does a good job of filtering viral particles of the size most likely to cause infection. You can use surgical mask material or even a piece of a vacuum bag as a filter between two pieces of fabric. If you like your two-layer mask, you can just wear it over a surgical mask when you want added protection. “Even the simplest cloth mask of one layer of material blocks half or more of aerosols we think are important to transmission.

Source: bd News24 November 26, 2020 05:37 UTC