Impregnated with PHMB (Polyhexamethylene Biguanide), a powerful yet safe antiseptic that has a broad range effectiveness against gram positive and gram negative micro-organisms including some multi-drug resistant strains such as MRSA. Low cost, prophylactic method of treatment without changing nursing protocol. Come with a perforated mylar film with an absorbent core ideal for use as a primary dressing for lightly draining wounds.