Your heating and air conditioning system relies on filters to keep the air in the house clean and comfortable. However, many people don’t know how often to change them or how issues with dirty filters could impact their system, speeding the need for HVAC repairs. With this in mind, the guide below attempts to clarify the types of filters available and the benefits of switching them out regularly.

What Do Air Filters Do for an HVAC System? 

As people go about their daily lives—cooking, cleaning, and taking care of their families—they are constantly producing microscopic airborne pollutants. This combination of dust, food particles, hair, and dead skin cells can cause grime to accumulate inside of your HVAC system, hindering efficiency. The role of air filters is to capture these particulates to improve indoor air quality.

If filters aren’t changed regularly, they could limit airflow to your air conditioner and furnace, making it more difficult for these devices to heat and cool your home. Over time, dirty air filters can put strain on the system, causing mechanical failures. Even if you avoid HVAC repairs for a while, this lack of efficiency will drive your utility bills up.

What Varieties Are Available?

There are three basic types of air filters: fiberglass, pleated polyester, and HEPA filters. Fiberglass filters are the most common variety—made to be inexpensive enough to toss away when they become dirty. Pleated polyester filters are a bit more effective, but are still not as thorough at cleaning the air as HEPA filters, which remove as much as 99.97% of particulates larger than 0.3 microns.  

How Often Should Filters Be Replaced?

While some filters are designed to last longer than others, aim to replace standard 1”-3” filters at least once every 30-60 days. However, if you are a pet owner, smoke, or have allergies or asthma, you will likely need to switch them more often—as soon as it becomes visibly dirty. If you notice your system having trouble, change the filter to see if it resolves the problem before scheduling HVAC repairs.

Since each HVAC system and home is a little different, talk with the team at County Line Heating & Air Conditioning in Broken Arrow, OK, about which filters are best for your unit and how frequently to change them. In addition to receiving targeted advice for your home, these contractors can also help with emergency HVAC repairs and ongoing maintenance. Read more about how they can help by visiting their website. Or call (918) 455-3463 to schedule service today.