West Plains, Missouri
1626 Earls Drive
West Plains, MO 65775
(417) 256-7984

A Guide to HVAC Air Filters April 10, 2020

West Plains, Howell
A Guide to HVAC Air Filters, West Plains, Missouri

Many people know that it is necessary to change the HVAC air filter every few months. If you’re a new homeowner, or you aren’t familiar with how your home’s heating and cooling system works, you might wonder why this step is significant. To understand the importance of filter maintenance, below are answers to a few of the most common questions that homeowners have. 

Frequent Questions About Residential Air Filters

What does an air filter do?

HVAC air filters serve two purposes. They protect your system from dust and other contaminants, as well as clean the air in your home. Filters remove allergens like dust, pollen, animal dander, and mold spores from the air, keeping it clean and fresh. A working screen is crucial if you or anyone in your household has respiratory issues or allergies, as it prevents irritants from making them worse.

How often should you change the air filter?

hvacGenerally, you should change the air filter every three months. This ensures that it can reliably keep contaminants out of the air. However, you may need to change the filter more often for many reasons. Lower quality filters don’t last as long, and certain lifestyle factors will make more frequent changes necessary. If you smoke, have pets, or someone in the house is allergy-sensitive, you should replace the HVAC filter more often. 

Are there signs you should change the filter?

Check the filter monthly to determine whether you need to change it. If you can see dust and debris buildup on the filter, you need a replacement. If your house is dustier than usual, or you notice that your HVAC system is running more or longer than usual, a new filter will likely solve the problem.

Are pleated or non-pleated filters better?

A common misconception about residential air filters is that pleated varieties are always better. However, this is not the case. While pleated filters work well, depending on your home, they may restrict the airflow too much and make it feel stuffy inside. Pleated filters can also cause your unit to work harder restricting airflow on systems that have not been designed to operate with a pleated filter.  To decide if you need a pleated or non-pleated air filter, look for a recommendation from the manufacturer of your HVAC system.


For help keeping your HVAC system in reliable condition, turn to Butler Heating & Air in West Plains, MO.  This NATE® certified heating and air conditioning team has been serving residents and businesses with quality repairs and friendly and professional service for more than 25 years. To learn more about their services, visit the website. Call (417) 256-7984 to make a service appointment. 

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