ASTM LEVEL 1
Fluid resistance= 80 mmHg
BFE > 95% at 3 microns
PFE ≥ 95% at 0.1 micron
DELTA P, mm H2O/cm2 < 4.0
Meets EN14683 Rating-Type II Standard
- Fluid resistant outer layer
- White tissue inner layer
- Extra-long aluminum nose piece
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