- 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
- White hypoallergenic inner cellulose layer
- Fluid resistant outer layer
- Extra-long aluminum nose piece
- Extra soft – will not lint, tear or shred