Aquacel AG+ Extra 5x5cm (10). AQUACEL® Ag Extra™ dressings give you.ALL the basic benefits of Convatec’s unique Hydrofiber™ Technology plus ionic sliver for wounds that are infected or at risk for infection.. The benefit of 20 years of innovation gives today’s AQUACEL® dressings EXTRA:. Strength. Absorbency. Wear time. And the ability to kill a broad spectrum of wound-related microbes in the dressing:. Rapid and effective antimicrobial action. Controlled release of ionic silver as wound exudate is absorbed into the dressing. Sustained antimicrobial activity for up to 14 days. Hydrofiber® Technology gives AQUACEL® dressings powerful capabilities.