Thousands of counterfeit 3M respirators have slipped past U.S. investigators in recent months, making it to the cheeks and chins of healthcare workers and perplexing experts who say their quality is not vastly inferior to the real thing.
Thousands of counterfeit 3M respirators have slipped past U.S. investigators in recent months, making it to the cheeks and chins of healthcare workers and perplexing experts who say their quality is not vastly inferior to the real thing.
