Type: | 3 Ply, Ear Loop, Hidden Bridge Crossbar |
Level: | Type IIR |
BFE: | ≥98% |
Material: | 2 Non-Woven Layers, 1 High Breathability Melt-Blown Layer |
Differential pressure: | < 20 Pa/cm² ,Triple Ventilation |
Packaging: | 50 Pcs, OEM Available |
Shelf-life: | 2 Years |