Stock Photo - Production manager Daniela Jandova shows respiratory masks in Pardam company, on January 31, 2020, in Roudnice nad Labem, Czech Republic. Buyers' interest in face masks and respirators made of nanofiber has shot up enormously in recent weeks in connection with the emergence of new coronavirus in China, Jan Buk, director of the nanofiber masks' Czech producer Pardam, has said. (CTK Photo/Ondrej Hajek)

Stock Photo: Production manager Daniela Jandova shows respiratory masks in Pardam company, on January 31, 2020, in Roudnice nad Labem, Czech Republic.

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