Provides a waterproof, sterile barrier to external contaminants including liquids, bacteria and viruses. In vitro testing shows that the transparent film provides a viral barrier from viruses 27 nm in diameter or larger while the dressing remains intact without leakage. The CDC/HICPAC Guidelines for the Prevention of Intravascular Catheter-Related Infections base dressing change recommendations on studies with Tegaderm™Film. The “frame” delivery system, allows maximum versatility as it can be cut to any shape and size, notched designs provide a better seal around the catheter. Breathable film allows moisture vapor and oxygen exchange. Wear Time till life of cannula, Easy to Apply and Remove. Tegaderm™ Brand transparent dressings can be used to cover and protect catheter sites and wounds, to maintain a moist environment for wound healing, and to secure devices to the skin. Made with a hypoallergenic, latex-free adhesive that is gentle to the skin yet holds catheters and other devices in place. Conformable: dressing flexes with skin for greater patient comfort. Best Practices by ICNA, INS guidelines.