Crosstex GCIBL Isofluid Earloop Face Mask ASTM Level 1 Blue 100/Bx
Earloop Mask – Blue, 100/Bx. Fluid Resistant Outer Layer, White Tissue Inner Layer, BFE ≥ 95%, PFE ≥ 95% at 0.1 micron, Latex-Free, Extra-Long Aluminum Nose Piece, Delta P (breathablility) < 4.0, ASTM Level 1.