Dr. Lien-teh was a Chinese-Malaysian epidemiologist who invented a surgical face mask that’s widely believed to be the precursor to the N95 mask.
WASHINGTON — Google on Wednesday celebrated what would have been the 142nd birthday of the inventor of surgical face masks, Dr. Wu Lien-teh, with a Google doodle.
Dr. Lien-teh was a Chinese-Malaysian epidemiologist whose invention is considered to be the…
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