Standard: EN14683. Fluid Resistant. Pleat style with ear loops. Protective four-layer protection against blood and bodily fluids and infectious diseases. BFE ≥98%.
Bacterial Filtration Efficiency (BFE) is the effectiveness of a material to filter bacteria of a specified particle size, 3.0 µm (micron) ± µm. This is expressed as a percentage of a quantity that does not pass through the material.
Usage time max 4 hours.