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Re: How do you know when to change a cabin air filter?
Posted to HVAC Forum on 12/29/2016

In the area where I work, it's when the mice chew through them and end up all ground up in the blower motor cages. I've done the same damn 2010 Honda Pilot at least 6 times. Absolutely disgusting.

The rest are done on schedules as per the mfr.

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