Putoline air filters, based on leading-edge open-cell foam technology, bring users major benefits,
including: Improved performance through increased airflow. Improved protection through finer filtration levels. Substantial cost savings through serviceability and re-use.
Fully reticulated (open cell) foam, as used in all Putoline filter products, consists of a honeycomb of tiny, interlocking cells of uniform size. When treated with specially formulated filter oil, each passageway is like hundreds of very small centrifugal/oil bath filters connected one to another. In this way, the foam traps and holds the particles throughout the entire volume of foam.