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Tag: Disposable surgical masks

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  • Disposable surgical masks best for making your speech heard

    Disposable surgical masks best for making your speech heard

    For the study, published in The Journal of the Acoustical Society of America, the team tested medical masks, disposable surgical masks, masks with clear plastic windows around the mouth, and homemade and store-bought cloth masks made of different fabric types and numbers of layers.

    January 6, 2021