A commercial air conditioning system requires routine maintenance to function properly, including in-depth cleaning and timely repairs. Replacing the air filter is one task that is easy to overlook, but it's essential for the health of your company and AC system. Learn more about the air filter's purpose and when to change it in the following guide.

What Do Air Filters Do? 

Air filters feature layers of thin, mesh-like material to capture dust, pollen, and other indoor allergens. They cover the main throughways and prevent particles from passing into the rest of the building. 

A filter only has a limited surface area, so it should be changed out regularly to preserve indoor air quality. Otherwise, it will develop a thick layer of dust, which reduces its functionality and allows contaminants like bacteria and viruses to enter the vents. As they move about the building, they can increase the rate of infection. Regularly changing the filter will maintain a healthy atmosphere. 

How Often Do Air Filters Need to Be Changed? 

Commercial air conditioning systems that operate within a dry, clean environment should have quarterly filter change-outs at a minimum. Those that are regularly exposed to manufacturing dust or outdoor air may require more frequent replacements to prevent excessive buildup.

Indoor temperature fluctuations indicate an air filter has reached full capacity, as the layer of dust reduces airflow and keeps the building from reaching the optimal temperature. Also, look out for constant cycling and an increase in utility costs, which show the system is overworking to compensate for a dirty filter.

If you have an issue with your commercial air conditioning system, reach out to Aloha State Services in Honolulu, HI. These licensed professionals have been in the business since 1984 and handle air conditioning repairs and installation. They maintain an A+ rating with the Better Business Bureau® for their exceptional customer service. Call (808) 832-2622 to set up a maintenance appointment, or visit their website for more information on their services.