What Does the Arrow on a Furnace Filter Mean

Do you know how to properly change a furnace filter?

Fall is only a few short weeks away. Do you know when you last changed your furnace filter? Changing your furnace filter regularly and properly is important for indoor air quality, your family’s health, and the life of your heating and cooling equipment. Neglecting to change your furnace filter results in poor airflow and decreased filtration power. Many homeowners should change their disposable furnace filter once a month, but the bare minimum is once a season. That’s why now is a great time to go ahead and change it out properly. Do you know the correct way to change your furnace filter?

1. The first thing you need to do is find out where your furnace filter is located. Is it in your ductwork? Near your furnace? Inside the air handler or furnace cabinet? If you are not sure where your filter is located, make sure you get in touch with a contractor.
2. Next, find out what size filter you need along with the proper filtration power. Higher efficiency filters can eliminate dust throughout your home and block all sorts of harmful airborne contaminants.
3. Correctly place your furnace filter. This is where knowing which way the arrow is supposed to face is important. Always make sure that the airflow arrow on your furnace filter is pointing towards your furnace or air handler.

If you have questions or concerns about your furnace’s filter, make sure you get in touch with your local heating and cooling specialist. Especially, if you aren’t sure where your filter is located. You don’t want to go poking around in your ductwork or furnace cabinet to try and locate your filter. When in doubt, call a professional.  

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