I swapped it out in July and it should still have had a few weeks/months left in it, but the fires apparently have caked it up. Based on previous changes of filters in the house every 3 months, this looks like about 2 years or more of dust build up. Changed it because the filter seemed to be whistling in the ducting.
You can barely make out the mountain from the smoke this morning, but it's at least clear enough that this side doesn't appear to be ablaze (yet!?).
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Morning coffee. Glad we weren't evacuated last night. #ItsTheLittleThings