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How Often Do You Really Need to Change Your HVAC Filters?

The Answer is, “It Depends.”

If there’s a frequently asked question in the HVAC industry, it’s got to be, “How often should I change my filters?” These items are one of the first things our Philadelphia heating and air conditioning experts check when we go on a service call. That’s because changing them is the one thing homeowners can do to extend the life of their HVAC systems — and they’re one of the most-overlooked maintenance tasks.

There’s a lot of conflicting information online about when to change your filters, and our best answer is, “It depends, but regularly!” Here’s some more information to help you set a good schedule.

What Kind of Filter?

When you buy a filter, you might be tempted to go with the cheapest option. But while the initial price might be low, it’s probably not all that cost-effective. A one-inch filter will last 30-90 days depending on conditions in your home.

Are Allergies or Illness a Concern?

If you or someone in your home suffers from allergies or asthma, it’s probably a good idea to change your filter more often. Your HVAC filter works to remove dust and other particles from the air that circulates in your home, and a clean filter does the job better.

You can also invest in a 4-plus inch media filter that will capture more allergens and will last between six and 12 months depending on conditions in your home. A whole-house system sanitizer can also help kill viruses and bacteria in your home’s air.

What’s Your Home Like?

Conditions in and around your home also affect how often you should change your HVAC filter. Change your filter more often if you:

  • Have pets.
  • Have a larger home.
  • Live in an area with poor air quality.

If you have questions about maintaining your furnace or HVAC system, the experts at Joseph Giannone Plumbing, Heating & Air Conditioning are here to help. We can recommend a high-quality furnace filter, or even install whole-home air sanitizers. Just use our online booking system to schedule an appointment or call (215) 375-7134 today!