The Wound Seal Duo (SKU HHWSD01) contains two sterile, TCCC‑compliant occlusive hydrogel dressings—each 6″ × 8″—vacuum-sealed in a slim pouch. It’s crafted to quickly seal penetrating wounds (chest or otherwise), even in the presence of blood or debris. Utilizing the same polyurethane substrate and adhesive as the widely favored Bolin Chest Seal, these dressings offer reliable wound management in emergency scenarios