Medical masks (surgical and procedural masks)

Medical masks are worn by operating room personnel during surgical procedures. They protect both the patient and operating room staff from the transfer of:

• bodily fluids

• micro-organisms

• particulate material

There are 3 classifications under ASTM International standards:

• Level 1 (low) - venous pressure splash

• Level 2 (moderate) - arterial pressure splash

• Level 3 (high) - high-velocity procedures, orthopedic surgery