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A Malaysian Designed The Original N95 Mask. He Also Stopped A Plague That Killed 60,000

He expended on surgical masks he had seen in the West, developing them into more substantial masks with layers of gauze and cotton to filter the air through its several layers of cloth.The mask wrapped securely around one's face. Some doctors, however, still doubted the effectiveness of Dr Wu's face masks, with one such doctor dying of the plague after refusing to wear the mask.According... Click here to read the […]

today25 April 2020