The new HyFin Vent Chest Seal provides an additional solution to the treatment of penetrating injuries to the chest by providing an occlusive chest dressing with a patented built-in vent that prevents airflow into the chest cavity during inspiration while allowing air to escape through the vent channel during exhalation. The HyFin Vent Chest Seal is a 6 in. x 6 in. occlusive dressing with built-in vent that provides a superior occlusive chest dressing for those treatment protocols that call for the use of a dressing secured on 3-sides or a vented/valve type chest seal. It features an enhanced adhesive gel formulation that creates a superior seal, even in the most adverse conditions. The seal has a transparent backing to allow placement directly over the wound and easily conforms to the patients chest. The seal is designed with a large, easily-visible red elliptical tab for single step peel-and-apply application that can also facilitate the burping of a wound if necessary. To ensure high quality performance, NAR packages each chest seal using its signature Red Tip Technology red tear notches in a rugged, easy-to-open, foil pouch. The HyFin Vent Chest Seal is made in America and is 100% latex free. Special Features: Large size (6 in. x 6 in.) Patented vent built into the dressing U.S. Patent 7,504,549 & Patent(s) Pending Advanced adhesive technology Over-sized red elliptical tab for single step, easy to use, peel-and-apply application Conforms to the casualty's chest Effective in extreme environments Latex free Made in America Dimensions: 4.625" H x 7.5" W x 0.1" D (packaged) Dimensions: 6.0" H x 6.0" W x 0.1" D (chest seal)