Ihe mkpuchi ihu KN95 enwere ike iwepu
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Ihe mkpuchi mkpuchi KN95 - ụlọ ọrụ-ziri ezi, ekwenyere mma, achọrọ n'ụwa niile.
Kemgbe afọ 2019, ihe mkpuchi nchekwa KN95 anyị ahụla ka ahịa na-abawanye ngwa ngwa, ma n'ime ụlọ na China ma n'ụwa niile site na mbupụ. Site na mmepụta ihe nkpuchi zuru oke na ntozu mbupụ, anyị na-enye nhọrọ nchebe ntụkwasị obi.