The Allied Gomco 01-90-3928 is a high-efficiency hydrophobic bacteria filter designed for portable suction units, including the Gomco OptiVac G180 and tabletop aspirators. This filter serves as a critical barrier, protecting the vacuum pump’s internal components from fluid and aerosol contamination that can cause mechanical failure. With a 99.97% D.O.P. retention efficiency for 0.3 micron particles, it effectively prevents bacterial cross-contamination between patients. The simple barb-to-barb design allows for quick and secure installation between the collection canister and the vacuum inlet, ensuring the system remains clean and operational.