Two filters?

[tigrpal]

2007 Toyota Corolla @ 11,000 miles I opened the air cleaner box to see how the OEM air filter looked. Wide pleats and no rubber gasket around the edge: [image]

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Then I looked underneath the "lid" of the box (upsteam from the replaceable filter) and found a second filter. This one is not replaceable. It has a plastic screen over a fiber material: [image]

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Is this common on newer cars? I've never seen this before. What is its purpose? It's not as dense as the first filter so it wouldn't trap smaller paricles.

 

[LTVibe]

My car has the same engine/air filter that your Corolla has, and also that extra "filter".

According to this link , that extra filter absorbs fuel vapors when the engine is shut off, and it does not need to be replaced like the regular air filter.