How Often Should You Change Your HVAC Air Filter?
Checking your air filter is the single most important and cost-effective thing you can do for your central heating and air conditioning system.
We recommend checking your air filter at least every 3–6 months. If you have a disposable filter and it’s dirty, replace it—don’t attempt to clean it. During periods of heavy HVAC use, such as summer and winter, it’s best to inspect your filter every three months or more often if needed.
Where Is My Air Filter Located?
Your air filter is usually located in the return air duct next to your furnace or indoor air handler. It may also be located next to the blower motor inside the furnace. Some homes have a central filter installed in a wall or ceiling return grille.
If you’re unsure where your filter is located or how to replace it, ask one of our technicians during your next service visit. We’ll be happy to show you.
Installing Your Air Filter Correctly
Air filters are directional, meaning air flows through them in only one direction. Look for the airflow arrow printed on the filter and install it so the arrow points toward the furnace or air handler.
How Often Should You Change Your Air Filter?
The right replacement schedule depends on your home and lifestyle.
- Average home with no pets: Replace every 90 days.
- One cat or dog: Replace every 60 days.
- Multiple pets or allergy sufferers: Replace every 30–45 days.
- Vacation home or single occupant with no pets: Replace every 6–12 months.
Midwest Heating’s Recommendation
These are the recommendations we follow in our own homes. As you live in your home, you’ll learn how quickly your filter becomes dirty during different times of the year.
In the Kansas City area, filters often collect more dust during the peak heating and cooling seasons. We recommend replacing your filter before the cold winter and hot summer arrive to help your system operate efficiently, improve indoor air quality, and extend the life of your HVAC equipment.
Need Help With Your HVAC System?
If you have any questions, contact us, schedule your service online, or call us anytime at (816) 943-8400.
At Midwest Heating, Cooling & Plumbing, we’re proud to help homeowners throughout the Kansas City area keep their heating and cooling systems running efficiently year-round.
