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Frequently Asked Questions About AC Air Filters

Posted on September 14, 2023 by

Everything Homeowners Need to Know About Air Filters

Any HVAC professional will say that the air filter is one of the most important components of an HVAC system. And yet, many homeowners underestimate the role that air filters play in the performance, efficiency, and health of their AC or heater – not to mention the health of everyone in the household.

So, it pays to learn more about air filters and their importance for any homeowners who want to keep their air conditioners and heaters running strong and enjoy a healthier, more comfortable home. To help clear the air (no pun intended), this article will answer some questions and dispel a few common myths about AC air filters!

What Does an Air Filter Do, Exactly?

An air filter removes dust, dander, debris, and other contaminants from the indoor air as it is pulled into the HVAC system’s main intake or return vent. As air moves through the filter, airborne pollutants get trapped in the filter media so they can’t interfere with the HVAC unit’s internal components. The filter media is typically made from woven fiberglass, foam, or pleated paper or cloth.

Different types of filters are designed for different applications and types of HVAC systems – the thicker the filter, the wider range of pollutants it can capture, but the stronger the unit needs to be to pull air through it. Some are rated to capture tiny particles such as smoke, mold spores, and even viruses – but these are typically found in hospitals and industrial settings. The AC air filters used in most homes are designed to capture only larger pollutants like hair, pet dander, pollen, and dust.

How Often Should AC Air Filters Be Replaced?

filterIn general, air filters should be replaced every three months – although more frequent air filter replacements may be a good idea if anyone in the home has severe allergies, asthma, or if multiple indoor pets are contributing to the overall level of dander, dirt, and hair in the home.

Some homes may have electrostatic or reusable air filters inside the AC or heater. These must also be cleaned regularly to keep the unit and the indoor air clean. This can be done by a professional as part of routine HVAC service. Still, homeowners may be able to do it themselves between professional maintenance visits – as long as they follow the manufacturer’s instructions to avoid damaging the filters.

Why Is It Important to Replace Air Filters On Time?

benefitsRegular AC filter replacement is critical for several reasons. As airborne pollutants accumulate in the filter media, it will become harder for the HVAC system’s blower to pull air into the system for cooling or heating. The unit will then have to work harder to meet the demands of the thermostat, putting undue strain on the blower motor and other components. 

This will also increase heating and cooling costs as the unit consumes more energy to heat or cool the home effectively. At the same time, the lack of proper airflow caused by a dirty air filter will leave more contaminants inside the house, leading to poor indoor air quality. The benefits of replacing air filters on time include the following:

  • Improving energy efficiency and reducing heating and cooling costs
  • Improving system performance for a more comfortable home
  • Improving indoor air quality
  • Extending the life of the unit by reducing wear & tear

Considering all of the above, it should come as no surprise that HVAC technicians check the air filters’ state before anything else when diagnosing problems. To keep their HVAC systems operating at peak efficiency and enjoy a healthier, more comfortable home all year round, homeowners can take the simple and easy action of replacing their air filters on time!

About Albritton Service Co

The award-winning Albritton Service Co has been Ruston’s go-to resource for all things HVAC and electrical since 1982. They offer 24/7 emergency service, fast turnarounds, personalized solutions, and a 100% satisfaction guarantee on every job. Their friendly and punctual technicians are all licensed, insured, background-checked, and drug-tested, so homeowners know they’re in good hands when they call Albritton for HVAC maintenance and air filter replacement in Ruston, LA!

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