Cabin Air Filter After Wildfire Smoke: When to Replace It
What the filter does, how smoke affects it, and a quick replacement guide.
Should I replace my cabin air filter after wildfire smoke?
If you drove through heavy smoke, yes. The cabin air filter traps particles that would otherwise enter the car, so smoke loads it quickly. Replace it sooner than the usual interval, and check your owner manual for the schedule and location.
Signs of a clogged filter
- Weak airflow from the vents
- A musty or smoky smell when the fan runs
- Windows that fog more easily
- Visible dirt or ash on the filter when you check it
Types of filter
| Type | What it does |
|---|---|
| Standard particulate | Traps dust, pollen and larger particles |
| Activated carbon | Also helps reduce odors and some gases |
| Higher-grade particulate | Captures finer particles, check that it fits your car |
How to change it
- Check your owner manual for the location. It is often behind or under the glovebox.
- Open the access door, noting the airflow arrow on the old filter.
- Slide the old filter out and clean any debris from the housing.
- Slide the new filter in with the arrow pointing the same way.
- Close the cover and test the fan.
The job is simple on many cars and awkward on a few. If yours is awkward, a shop can do it quickly.
In Spokane
Smoke seasons usually arrive in late summer. Check air quality with the Spokane Regional Clean Air Agency, and use the recirculate setting during smoke. A new filter is a low-cost step, and our smoke odor removal handles smells in the fabric and headliner. Also see our guide on cleaning wildfire ash off your car.
Related services and pages
Questions
How often should I replace the cabin air filter?
Will a new filter remove smoke smell?
Can I clean and reuse the filter?
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