Disposable surgical masks best for being heard clearly when speaking, study finds

Researchers have published the results of a new study evaluating the acoustic effects of face masks on speech. 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.

from Top Health News -- ScienceDaily https://ift.tt/3pksnsG