According to the American Lung Association, indoor air quality can be two to five times worse than outdoor air. Your AC filter is the silent guardian standing between your family and allergens, dust, and pollutants. But it only works if you get the AC filter sizes exactly right.

Filters are your HVAC system’s first line of defense. They trap dust, allergens, and contaminants to protect your family’s health and keep your home comfortable.

Below is a guide on everything you need to know about HVAC filters.

Understanding HVAC Filters and Why Size Matters

Your HVAC system uses filters that come in various sizes and types. Each is designed to fit specific systems perfectly. Using the correct HVAC filter dimensions is important because it allows for efficient airflow and filtration.

Improperly sized or installed filters can cause air leakage, reducing filtration effectiveness. As a result, pollutants can circulate indoors. So why are AC filter sizes so important?

Here are some key reasons:

  • Efficiency: A correctly sized filter allows for optimal airflow, improving HVAC efficiency
  • Health: Residential AC filters capture harmful allergens, offering cleaner air in your home
  • Longevity: The right size reduces strain on your HVAC system, extending its lifespan.
  • Energy savings: Well-sized filters lower energy consumption, leading to lower bills.

The EPA confirms that effective filtration can reduce indoor particulate matter by up to 50%. That’s a game-changer if you suffer from allergies.

Choosing the Right Size for Your AC Filter

Picking the right AC filter sizes can feel overwhelming. However, it’s easier than you think when you follow a few simple steps:

  • Check your current filter: Most filters have their size printed on the frame
  • Consult your HVAC manual: Your system’s manual will specify the recommended filter size and type
  • Measure accurately: Measure length, width, and depth
  • Understand MERV ratings: Higher MERV ratings capture smaller particles but may restrict airflow
  • Consider your system type: Central ACs, heat pumps, and other systems may require different filter characteristics

Choosing AC filters requires you to balance filtration and airflow to improve air quality. Using a filter that’s too small can let dust bypass the filter, while one that’s too large may not fit properly.

Signs It’s Time for Air Filter Replacement

Keeping your filters clean is as important as choosing the right size. Look out for these air filter replacement signs:

  • Visible dirt or dust buildup on the filter
  • Reduced airflow or uneven cooling/heating
  • Higher energy bills without a change in usage
  • Increased respiratory issues in your home

Consider replacing or cleaning filters every one to three months, depending on your home. If you have pets or live in a high-pollen area, you may need to change filters more often. Consult HVAC professionals for expert help.

Embrace Cleaner Air With the Right Residential AC Filters

Your home’s comfort and health depend on the quality of the air you breathe. Selecting the correct AC filter sizes ensures your HVAC system runs efficiently and your indoor air stays fresh and clean.

Ready to improve your indoor air quality? Look no further than Sewell Electric & HVAC.

For over 75 years, we’ve been a trusted name for HVAC, electrical, and appliance services. As a family-owned company, we deliver expert HVAC solutions with a personal touch.

Contact us today to improve your indoor air quality.

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