Should we Rethink our Whole Mask Policy? Mask policy to combat COVID is based not on protecting the wearer but on protecting others from being infected by the wearer. There is an argument to be made that the emphasis should be the other way around. If everyone is protected then stopping the virus at its source is not so critical. It is appealing to just focus on stopping the source as you would by just turning off a garden hose. But if the water is already part of a rain storm, source control is too challenging. Virus in big cough droplets can be likened to the garden hose whereas virus aerosols can be likened to the rain storm. We have mounting evidence that at least some of the COVID transmission is through small droplet aerosols or on virus attached to small particles. The argument can be made that the most important safeguard will be a highly efficient N95 or even N99 mask. Here are some examples... Click Here For Complete Article Text
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