EN 149 chiyero cheEuropean chekuyedza uye kumaka zvinodiwa pakusefa hafu yemasiki.Masks akadaro anovhara mhino, muromo uye chirebvu uye anogona kunge aine inhalation uye/kana mavharuvhu ekufema.EN 149 inotsanangura makirasi matatu eakadai hafu yemasiki, anonzi FFP1, FFP2 uye FFP3, (apo FFP inomiririra kusefa kumeso) zvichienderana nekusefa kwavo.Inoisawo masks kuita 'imwe shift kushandiswa chete' (isingashandiswezve, yakanyorwa NR) kana 'inogona kushandiswazve (inodarika imwe shift)' (yakaiswa chiratidzo R), uye imwezve yekumaka tsamba D inoratidza kuti mask yapfuura. Optional clogging test uchishandisa dolomite guruva.Ma mechanical filter respirators anodzivirira kubva pakufemerwa kwezvinhu zvakaita seguruva zvidimbu, madonhwe, uye aerosols.
