CROSSTEX ULTRA EARLOOP ASTM LEVEL 3 MASK GCFCXU High Efficiency Filter Media, Fluid resistant outer layer, Fluid resistant white inner layer, Extra-long aluminum nose piece, Fluid Resistance = 160 mmHg, BFE >98% at 3 microns, PFE >98% at 0.1 micron, High Breathability Delta P (breathability) <5.0 H2O/cm2, Meets EN14683 Rating-Type IIR Standard, Not made with natural rubber latex, Made in USA, Blue 40/bx, 10 bx/ctn (400 mask per cnt) |