CategorySpecificationSeriesKNCorresponding StandardN99Enterprise Code (Grade)KS-ⅠFlow Rate85LTesting RequirementDouble LayerResistance (pa)≤110PFE Efficiency (%)≥99Grammage (g)25ColorWhiteTesting MediumSodium Chloride (NaCl)...

CategorySpecificationSeriesKNCorresponding StandardN95Enterprise Code (Grade)KS-ⅠFlow Rate85LTesting RequirementSingle LayerResistance (pa)≤50PFE Efficiency (%)≥90Grammage (g)25ColorWhiteTesting MediumSodium Chloride (NaCl)...

CategorySpecificationSeriesBFECorresponding StandardBFE99Enterprise Code (Grade)BS-ⅢFlow Rate32LTesting RequirementSingle LayerResistance (pa)≤20PFE Efficiency (%)≥95Grammage (g)25ColorWhiteTesting MediumSodium Chloride (NaCl)...

CategorySpecificationSeriesBFECorresponding StandardBFE99Enterprise Code (Grade)BS-ⅡFlow Rate32LTesting RequirementSingle LayerResistance (pa)＞17 ≤25PFE Efficiency (%)≥99Grammage (g)25ColorWhiteTesting MediumSodium Chloride (NaCl)...

CategorySpecificationSeriesBFECorresponding StandardBFE99Enterprise Standard No. (Grade)BS-ⅠFlow Rate32LTesting RequirementSingle LayerResistance (pa)≤15PFE Efficiency (%)≥99Grammage (g)25ColorWhiteTesting MediumSodium Chloride (NaCl)...