Archive for December, 2019

Welcome to the December edition of CORESafety TV — the online video program from the National Mining Association. In 1919, the U.S. Bureau of Mines (USBM) launched the first Respirator Certification Program. Just a few months later, on January 15, 1920, the USBM actually certified the first air respirator. In recognition of the 100-year anniversary […]

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