ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,538,949, issued on Feb. 3.
"Personal protection equipment for protecting a user from airborne pathogens" was invented by Rodney Herring (Victoria, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A disposable mask or optically transparent mask comprising a mask body is provided. The disposable mask includes a periphery, and straps attached to the mask body proximate the periphery for releasably retaining the mask on a user's face, the mask body including: an inner layer, which is a polymeric plastic material with a plurality of passageways therethrough, and which has an inner surface and an outer surface; and a porous glass filter which is functiona...