• Meets EU EN14683 Type IIR standard • FDA certification • High ability to filter pathogens BFE≥99% • Fluid Resistance >120 mmHG • Differential Pressure Avg: 48.6Pa/cm² (standard: <60 Pa/cm²) • Size: 175 x 95 mm (adult) • Earloop about 190mm • Mask can only be used once • Non-independent packaging (50 pcs/box) x2