Disposable face mask, Material : Non Woven

quantity: 50 pcs density g/m²: 54 -60 pack material: plastic bag performance characteristics: en 1483 type iir standard bacterial filtration efficiency (bfe),%: ≥ 98% delta p (mmh20/cm²) / (pa/cm²): < 49.00 synthetic blood / splash resistance penetration, (mmhg) / kpa: ≥16 sub-micron particulate filtration efficiency (pfe), @0,1micron, %: not required microbeal cleanliness (cfu/g): ≤ 30cfu