Antimicrobial Gauze Sponge Kerlix™ AMD Gauze / PHMB 12-Ply 6 X 6-3/4 Inch Rectangle Sterile20 Pack Per Tray, 12 Trays Per Case Contain PHMB (Polyhexamethylene Biguanide) Resists bacterial colonization within the dressing Reduces bacterial penetration through the dressing Broad spectrum effectiveness provides protection against gram , gram+ and fungi yeast microorganisms including MRSA and VRE Limits cross contamination from and to the patient, clinician and environment May be used as a primary or secondary dressing Hypoallergenic Soft pouch