The chest seal is an advanced occlusive dressing designed to treat open chest wounds. Chest Seals for sale are specifically designed with a medical grade hydrogel adhesive strong enough to adhere to skin that is exposed to blood, sweat, hair, sand or water.The high quality chest seal is available in both a vented and non-vented version. The vented version of the chest seal features a patent pending design with 4 vents that allow for one-way airflow out of the chest cavity during exhalation while preventing airflow into the chest cavity during inhalation. The 4 vent design of the chest seal for sale maximizes venting and ensures proper chest seal function in the event of an obstruction. If you have interest , welcome to contact us.