When the weather is hot and humid in Greensboro, North Carolina, having a functional air conditioning system is a necessity to maintain indoor comfort. One of the most vital components within your HVAC system is the air filter, which prevents contaminants from moving into the unit and your home.

Role of an Air Filter

When your heating or cooling system runs, it pulls air through the return registers and moves that air into the furnace or air conditioner. If the air contains any dust, pollen, pet hair, dirt, dander, or other debris, it can get trapped in the system and re-circulate every time it runs. A filter should prevent this from happening, although it can only do its job when it’s clean.

A clogged, dirty filter won’t do much, resulting in an excess of pollutants that move through your air and cause the quality to drop. You may notice health symptoms, such as congestion, headaches, sore throats, or eye irritation, when you’re breathing dirty indoor air. Additionally, the air filter plays a role in the overall efficiency of the system.

How Often Should I Replace My Filter?

Replacing your air filter is a necessary part of HVAC system ownership and maintenance. You can typically do this task yourself, as long as you can locate the filter in the system and access it to change it. Make sure to choose a filter that is the right size for your system, as an improperly sized filter can cause efficiency problems and other issues. Most manufacturers recommend changing the filter every month or two for maximum efficiency and healthy indoor air.

Air Filter Ratings

When you’re shopping for a new air filter, you’ll notice that each has a different MERV (minimum efficiency reporting value) rating. The higher the rating, the more effective the filter is at removing tiny particles. If anyone in your home suffers from allergies or breathing conditions, a higher MERV rating may help keep the air cleaner, but don’t exceed what is recommended for your system by the manufacturer.

If you have questions about air filters or your HVAC system, our team at Air Treatment Inc. Heating & Air Conditioning is here to help, so call us at 336-790-3206.

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