Kutengera kuyerekeza uku, ndizomveka kulingalira China KN95, AS/NZ P2, Korea 1st Class, ndi Japan DS FFRs zofanana ndi US NIOSH N95 ndi European FFP2 respirators, Posefa tinthu tating'onoting'ono tokhala ndi mafuta monga zomwe zimachokera moto wolusa, PM2.5 kuipitsa mpweya, kuphulika kwa mawu, kapena ma bioaerosols(monga mavairasi).
Makina opumira a N95 omwe Niosh adavomerezedwa ndiafupi.Kuti tidziteteze, tili ndi mphamvu zokwanira zopangira KN95 kuti tipereke miyambo yomwe ikufunika.
Ngati pali zofunika, chonde titumizireni mwachindunji.
Nthawi yotumiza: Apr-17-2020
