Na Julaị 2020, ngwaahịa kpakpando, ZR-1006 Mask Particulate Filtration arụmọrụ na ikuku na-eguzogide Nleba anya ngwaahịa ngwaahịa Mmeghe ZR-1006 ihe nkpuchi nzacha arụmọrụ na resis ikuku…
Maka nchọpụta ntanye maka HEPA Filter, a maara nke ọma iji aerosol photometer maka nnwale. ZR-6012 Aerosol Photometer ka ndị injinia nwalere ehihie na abalị. Taa, a ga-ahapụ ya ụlọ mmanya ...