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How Often Should an Air Filter Be Changed?

Changing your air filter regularly is one of the essential things that you should do to take care of your HVAC system. Nevertheless, many people forget to change their air filter for many months at a time. These units reside in the garage most of the time, and they are out of sight and out of mind. The result is an increase in the energy bills and maintenance issues in the home. However, you might not be changing your air filter because you do not know how often you are required to make the change. In case you don’t know how to swap out your air filter you can seek professional help from Charleston Heating + Air. Therefore, here is a list of recommendations to help you figure out the time frame of your air filter.

General Recommendations

As an overall rule, all air filters should be changed after every thirty days especially if the fiberglass filters being used are less expensive. The high-end pleated filters are built to withstand up to six months. However, the guidelines never take into account the size and type of screen. Instead, they consider the average use of the filter. Therefore, generally, replace your pleated air filters after every ninety days. Other factors might require you to change your filter more often than it is recommended.

Factors that require you to change your filter frequently:

  • Allergy and Asthma. The Allergy and Asthma Foundation of America states that the quality of air that is indoors is just as significant as the air quality that is outdoors. A lot of pollution is found in outdoor air. What you might not know is that indoor air might be worse than outdoor air. An allergic or asthmatic person is naturally more sensitive to the airborne particles. Hence, living with both types of people require a more frequent change of air filters to ensure that they have access to quality air. The recommended time for an air filter change, in this case, is every six weeks.

  • Pets. Pets are lovely creatures to own. However, they tend to build up an odor after a period of time indoors. Additionally, pets can shed a lot during the change of seasons especially when winter turns to spring and summer turns to fall. You'll notice the amount of hair and grime your pets cause when you swap out the air filter. Thus, to keep your indoor air fresh, change your air filter at least after every two months.

  • Children. If you have children in your house, maintaining quality indoor air is just as critical as keeping the house clean. Hence, to ensure that your children live under the best home conditions, change your air filters at minimal intervals of every two to three months, and again, even sooner if any children are asthmatic.

Why You Need to Change Your Home Air Filter

If you use your air filter for a long period, it is likely to collect more dirt, allergens, and dust. These particles are usually trapped and clogged inside the filter. The result is a decrease in the efficiency of the air filter. Additionally, dirty, clogged air filters can cause malfunctions and damage to equipment. They also reduce the amount of air that is inside the HVAC system making the fans work harder. Hence, they wear out faster than intended. If the air filter is not capable of removing particulates and contaminants from the air effectively, it is all released back to your indoor air resulting in a buildup of pollutants in your duct. Another common effect of using clogged air filters is an increase in the use of home energy that in turn increases the electricity bills in your home.

Make the Swap!

Your air filter should be checked once a month to confirm whether it is dirty or not. Charleston Heating + Air offers AC tune-up services that include a full check of your equipment. If we find any issues beyond a dirty air filter, we can provide solutions to keep your home air conditioning running optimally.

Contact us online or give us a call to request a service appointment!

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