Hospital central vacuum systems support many devices used in surgical procedures. POREX® Self-Sealing Filters are designed to help maintain the integrity of these systems. Our self-sealing filters are used in fluid collection canisters, which filter the air and protect the vacuum system lines from contaminants in the fluid contained within the collection canister. They are comprised of porous plastic containing a functional additive that immediately swells upon contact with fluids. The valve automatically and instantly shuts off airflow from the collection canister when collected fluids come in contact with the filter, thereby maintaining system integrity. The single-body design meets original equipment manufacturer (OEM) needs for high-volume, single press-fit assembly.