Edwards Vacuum 291-150SO Oil Mist Filter With Polypropylene Element

Edwards Vacuum 291-150SO Oil Mist Filter with Polypropylene Element is an exhaust filtration accessory for Edwards vacuum pumps that captures oil mist from the pump’s exhaust stream. It uses a polypropylene filter element and is cataloged as 900-291-034 (Exhaust oil mist filter - 291-150S Polypropylene), making it the compatible replacement in the 291-150S family. Exhaust mist filters are used to capture oil mist from Edwards pump exhaust to protect surrounding equipment and reduce emissions, a purpose described in Edwards application notes. Designed to be installed in the exhaust path on Edwards oil-sealed vacuum pumps, this replaceable filter is listed in Edwards catalogs as a standalone exhaust filter, not a pump assembly, and you should confirm compatibility with your specific model in the official Edwards catalog before purchasing.