Features: Adhesive-free window minimizes adhesive contact with needle and patient's skin, reducing the risk of the dressing sticking to needle during removal. Flexes with patient movement and can be worn up to 7 days. Transparent dressing permits clear visibility around the insertion site area. I.V. Transparent Film Dressing with Adhesive-Free Window. Transparent film dressing with adhesive-free window designed for oncology and hematology patients and others with implanted venous ports.