ConvaTec Carboflex® Odor Control Dressing 4" x 4" Sterile, Non-AdhesiveCarboflex® dressing is a sterile, non-adhesive dressing indicated for shallow wounds or as a secondary dressing over a wound filler for deeper wounds. It is a five-layer dressing specifically designed to address the management problems associated with malodorous wounds.Advanced multilayer construction includes a double-knit, activated charcoal cloth layer provideing effective odor absorption. Smooth, flexible, water-resistant outer film sleeve keeps charcoal layer dry. Alginate/hydrofiber layer creates moist wound interface.