PA Lightning
Well-known member
Arrows down is correctDoes anyone know which way airflow is when changing cabin air filter? I replaced the filter last spring or so and I just did it again today, but I'm not quite sure which way the air flows. It looks like the flow starts on top of filter and flows downward, but I'm not sure, and the manual doesn't specify.
I've been installing them with the airflow arrows pointing down towards floor... I hope that's right.
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