Advantage Blue Surgical Mask with Tie On Laces, BFE > 98%, PFE = 99.2 at 0.1

Crosstex International, GCSA . Blue Surgical Mask with Tie On Laces, BFE > 98%, PFE = 99.2 at 0.1 micron, Fluid Resistant Outer and Inner Layers, ASTM Moderate Barrier 4. Box of 50 masks.