Level 3, Procedure Mask, Blue, Box of 50, Case of 40, Made in USA

Made in the USA, medical grade masks.  50 masks per box. 40 boxes per case.  Registered with the FDA as a Level II medical device with code FXX. 2,000 masks per case

Meets ASTM F2100-19 Level 3 Standards

• Bacterial Filtration Efficiency      >=98%
• Partical Filtration Efficiency        >=98%
• Differential Pressure                  <5.0 mm H20/cm2
• Fluid Resistance                         160 mmHg
• Flammability                              Class 1

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Shipping included.