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Regardless of interval, it doesn't need changing unless it's dirty enough. It's easy to check so just pop the lid open and check how clogged it is. If you have an air compressor, you can shoot from inside to out on the filter and extend the life for free as well.
In addition to shooting compressed air or brushing it off with clean paint brush, I also rotate air filter 180 degrees, or since my ls460 has 2, can swap sides after cleaning to extend
I’ve vacuumed the top of an air filter before but would never blow compressed air through it, too much risk of making invisible perforations
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Plus there will be a larger hole where any small rocks were lodged which will let larger particles through. Filters are pretty cheap, so unless you are using a K & N where you wash it and then re-oil to use again, just get a new one.