Cabin filter Fram or OEM FORD

The why shupack answered, the fix if you care could be to try a third party cabin air filter. If there are any out there with a larger amount of carbon in them (carbon absorbs odor) that'd help. Replacing the cabin air filter behind the glove box is fairly easy to do and several YouTube videos on it. Cheaper than having the dealer do it, and 3rd party filters claim to be better. We did notice less smoke smell from the wildfires last summer when I swapped out from OEM to whatever filter I put in.

I think it was my 80s bronco, like changing a cabin air filter. Undo hoses in engine bay, open glove box, open a door and slide it out and slide the new 1 in, attach hoses, close it up. Did it in less than 10min.

Bought a new set of tires, and a cabin filter. That's it.

Unexpectedly low maintenance costs (my cost just skyrocketed because I replaced my windshield wipers whereas to date in three years I'd only had to change the cabin air filter a few times).

The cabin filter isn't difficult on any year fusion. It takes me 10-15 minutes. The engine air filter is 2-3 minutes. You can buy the filters for $60 or less.

Lightning here, so far just rotating tires and a new cabin filter.

I’d just get the standard FRAM, WIX, or so on if you wanted better airflow. If you don’t have bad allergies I’d just get regular since the benefit isn’t really noticeable otherwise, and then you get worse airflow.

FRAM TrueAir for me - smelled much fresher in the cabin for a little while, but nothing spectacular...

Now, I just replaced the cabin filter on my (new to me) 2021 Kia Soul for the second time in 9 months and the new one which is a Fram, smells so musty and stale when it’s on recirculate, I might just replace it with another one to see if it makes a difference. It literally smells like stale moth balls. If I take the filter out and run it, smell goes away.

IMO, don't get the really thick ones with carbon (like Fram FreshBreeze) - they restrict airflow and can cause the resistor and motor to overheat (essentially it's like a clogged/dirty filter)