You realize that the clear areas of the mask are not cutouts right. That there is a clear plastic panel.

So if cloth masks muffles the sound do to the intervening cloth, what makes you think having a plastic panel over the speakers mouth is going to improve sound transmission to the speaker is less muffled?

Since a hard plastic is likely to muffle sound MORE than a soft cloth, what specific benefit would the media gains from making the switch?
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.WW, PSHS