Meets EN14683 Rating – Type IIR Standard. 888-276-7783 | crosstex.com. ASTM LEVEL 3. High Fluid Resistance. 160 mmHg. Filtration Efficiency. BFE ≥ 98%.
astm-level-3-mask
Disposable Surgical Mask - Level 3 (Box of 50) ... These disposable surgical masks are a level 3, high barrier mask. With Bacterial Filtration Efficiency (BFE) and ... 939c2ea5af
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