Septemba a, Junray na ụlọ ọrụ sitere na South Korea abịanyela aka na nkwekọrịta imekọ ihe ọnụ. N'okpuru mmekorita a, akụkụ abụọ a ga-ejikọta ọnụ na-eme nchọpụta miri emi na f ...
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 ...