Description
- The principal of how foam air filters work is simple: “Open Cell” polyurethane foam is wetted with specially developed filter oil
- The “sticky” filter oil is suspended in the path of the dirty air on the strands of the web-like cell structure of the foam
- This makes it impossible for the dirt to pass through the strands
- As the outer strands become loaded with dirt particles, the wetted strands down stream start trapping dirt, allowing the entire thickness to be utilized
- This prevents surface loading or air restriction for 80% of the surface life of the air filter element
- When the filter is sufficiently dirty it can be easily washed, re-oiled and re-used
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