Crosstex Surgical Blue Surgical Tie-On Face Mask, Box of 50

Crosstex International, GCS . Blue Surgical Tie-On Face Mask, Fluid Resistant with BFE > 98%, PFE = 99.2% at 0.1 micron, Latex-Free, Flame Spread Class 1, Delta P (breathablility) < 5.0, ASTM Moderate Barrier 4. Box of 50 masks.