Thayipha I
Imaski yobuso bezokwelapha yohlobo I kufanele isetshenziselwe iziguli kanye nabanye abantu kuphela ukunciphisa ingozi yokusabalala kwezifo ikakhulukazi ezimeni eziwubhubhane noma eziwubhubhane. Amamaski ohlobo lwe-I awahloselwe ukusetshenziswa ochwepheshe bezokunakekelwa kwempilo egumbini lokuhlinza noma kwezinye izilungiselelo zezokwelapha ezinezidingo ezifanayo.
Uhlobo II
Imaski yohlobo II (EN14683) iyimaski yezokwelapha enciphisa ukudluliswa okuqondile kwe-ejenti ethelelanayo phakathi kwabasebenzi neziguli ngesikhathi sokuhlinzwa nezinye izilungiselelo zezokwelapha ezinezidingo ezifanayo. Amamaski ohlobo lwe-II ahloselwe ukusetshenziswa ochwepheshe bezokunakekelwa kwempilo egumbini lokuhlinza noma ezinye izilungiselelo zezokwelapha ezinezidingo ezifanayo.
Thayipha i-IIR
Imaski yohlobo lwe-IIR engu-EN14683 iyimaski yezokwelapha yokuvikela oyigqokile ekuchaphazeni koketshezi okungenzeka lungcoliswe. Amamaski e-IIR ahlolwa ngendlela yokukhipha umoya (kusuka ngaphakathi kuye ngaphandle), kucatshangelwa ukusebenza kahle kokuhlunga kwebhaktheriya.
Uyini umehluko phakathi kwamaski ohlobo I kanye nohlobo lwe-II?
I-BFE (Bacterial filtration performance performance) yohlobo I imaski ingama-95%, kanti i-BFE yohlobo lwe-II kanye ne-II R imaski ingu-98%. Ukumelana okufanayo kokuphefumula kohlobo I no-II, 40Pa. Amamaski obuso acaciswe ku-European Standard ahlukaniswa abe izinhlobo ezimbili (Uhlobo I kanye Nohlobo II) ngokuya ngokusebenza kahle kokuhlunga kwebhaktheriya lapho Uhlobo II luphinde luhlukaniswe ngokuya ngokuthi imaski imelana yini nokuchaphaza. U-'R' ubonisa ukumelana nokuchaphazeka. . Amamaski ohlobo lwe-I, II, kanye ne-IIR amamaski ezokwelapha ahlolwa ngokuya ngokukhipha umoya (kusuka ngaphakathi kuye ngaphandle) futhi kucatshangelwa ukusebenza kahle kokuhlunga kwamagciwane.