Outstanding air tightness in comparison to surgical mask 1. Size: 260mm x 110mm 2. Composition: Non-Woven Fabric, Melt Blown filter, Steel Wire, Earloop (4 Layers) 3. FDA Class 2 Registration 4. ASTM Level 3 5. Format: 3D Type 6. Purpose of Use: Protect respiratory system against source of infection (virus), Medical(Surgical) 7. Filter Performance: 99.9% particle blocking capability 8. Key consumers: High risk COVID-19 group, patients and workers at medical institutions
