Contain PHMB (polyhexamethylene biguanide). Resists bacterial colonization within the dressing. Reduces bacterial penetration through the dressing. Broad-spectrum effectiveness provides protection against gram negative, gram positive 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. Sterile. Latex-free.