Sterile Gas Compressor 7,5cm X 7,5cm 4 Layers 100 Light Box Sterile gas compresses are used for open wound care and treatment. Since it has high absorbent power, it provides an effective use in bleeding. It reduces the risk of infection in the wound as it is folded with the surgical folding method (without any thread coming out from the edges). It consists of 20 packs of 5 in a box.