Foxseal Vented performed at a steady low pressure in-vitro (Between 0.1 and 0.5mm Hg), even when fully covered with heavy clothing. Minimising the risk of developing tension pneumothorax (circa 10 mm Hg). Adhesion strength consistently higher than the specification standard (4 N), across all dressings, tested in-vitro. All dressings tested in-vitro displayed high adhesion strength after being carried in an IFAK flat, rolled and folded over an 8-week period, in -24℃ and 55℃. Consistently higher than the specification standard (4 N).