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Features: BFE≥98% PFE≥98% Standard: ASTM F 2100 Level 3
Features:
· 4layer protection
· Higher filtration
· 3D design,skin friendly
Specification:14.5x9cm Features: 3-layer prevention and protection
Material:non-woven+melt-blownx2+non-woven Features: Four layers of protection Filtration efficiency≥95% Willow-leaf cut, fits face contour
Standard: GB2626-2019
Materials: 50 gsm non-woven fabric/25 gsm melt-blown fabric*2 ply/50 gsm non-woven fabric
Size: 17*7.5 cm
DOE: 3 years
Model :C017
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