I-EN 149 ngumgangatho waseYurophu wovavanyo kunye neemfuno zokumakisha zokucoca imaski enesiqingatha.Ezo maski zigquma impumlo, umlomo kunye nesilevu kwaye zinokuphefumla kunye/okanye neevalvu zokuphefumla.I-EN 149 ichaza iiklasi ezintathu zeemaski zesiqingatha sesuntswana, ezibizwa ngokuba yi-FFP1, i-FFP2 kunye ne-FFP3, (apho i-FFP imele ukucoca ...
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