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How Frequently Do I Need to Replace My Air Filters?

Why maintenance agreements and a new air filter could be your new best friends.

hvac service technician replace a gas furnace's air filter

Maintenance agreements offer lots of time-saving and money-saving benefits, including making sure your air filter is replaced regularly so your system lasts longer. But is once or twice a year enough for changing the filter? Not if you want effective and efficient heating and cooling, among other things. So how frequently do you need to replace your HVAC air filter? Keep reading for the scoop.

What Does an Air Filter Do?

An air filter on your HVAC has multiple functions. First and foremost its job is to prevent harmful dust, debris, contaminants, and pollutants from entering your HVAC system. In doing so, the air filter also prevents those same irritants from getting circulated and recirculated throughout your home. So not only do they protect your heating system, but they also protect you and your family.

Why Change the Filter?

Indoor air pollution is one of the biggest environmental health risks we face daily. Changing your HVAC filter will cut down on the amount of pollutants in your home as they are caught and trapped by the filter. But it’s not just your health that could be compromised. Your energy efficiency can suffer if your HVAC filter is dirty. When air isn’t getting pulled through effectively because it’s blocked by a dirty filter, your heating and cooling system has to work that much harder to do the same job. This uses more energy and costs you more money on your utility bills.

So How Often Is Often Enough?

The general rule with air filters is to change them every 1-3 months. This can vary depending on the size of your HVAC system, the size of your home, your living environment, whether or not you have pets, and what area of the country you live in. A typical home should consider a new air filter every 90 days.

Air filters are vital to the efficiency and effectiveness of your HVAC system as well as being a link to better comfort and health. For more information on when and how to change your air filter as well as information on how maintenance agreements can affect your HVAC system, contact the team at H.H. Hovey.

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