How Often to Change Your Air Conditioning Filters

how often to change your ac filter in San Antonio

28 Feb How Often to Change Your Air Conditioning Filters

Posted at 08:18h in HVAC Tips by
0 Likes

Changing your air conditioning filter is one of the simplest yet most important maintenance tasks for your HVAC system. A clean filter keeps your system running efficiently, improves indoor air quality, and helps extend the lifespan of your AC unit. But how often should you replace it? The answer depends on several factors, including filter type, household conditions, and how often you use your AC.

Why Changing Your AC Filter is Important

Your AC filter traps dust, dirt, pollen, pet dander, and other airborne particles, preventing them from circulating through your home. Over time, the filter gets clogged, which can cause:

  • Reduced airflow, making your system work harder
  • Higher energy bills due to decreased efficiency
  • Poor indoor air quality, leading to allergies or respiratory issues
  • Potential system damage, as dust buildup can strain components

By changing your AC filter regularly, you keep your home comfortable and your system running smoothly.

How Often Should You Change Your Air Filter?

The general recommendation is to replace your air conditioning filter every 1 to 3 months, but this varies based on different factors:

1. Type of Air Filter

  • Fiberglass filters (inexpensive, thin) – Should be replaced every 30 days
  • Pleated filters (thicker, better at trapping particles) – Last 60 to 90 days
  • HEPA filters (high-efficiency, best for allergies) – Can last 6 to 12 months, but should be checked regularly

2. Household Conditions

  • Homes with pets – Change the filter every 30 to 60 days since pet hair and dander can clog it faster.
  • Allergy sufferers – If anyone in your home has allergies or respiratory issues, replace the filter every 30 days to maintain clean air.
  • Smokers or high-pollution areas – If someone smokes indoors or you live in an area with high dust or pollution, change it every 30 days.

3. AC Usage

  • Year-round use – If your AC runs constantly, replace the filter every 1 to 2 months.
  • Seasonal use – If you only use your AC in the summer, change the filter before the season starts and once during peak use.

4. Number of People in the Home

A larger household generates more dust, pet dander, and debris, requiring more frequent filter changes.

How to Change Your Air Filter

Replacing your AC filter is quick and easy:

  1. Turn off your AC unit to prevent unfiltered air from circulating.
  2. Locate the filter – It’s usually inside the return air vent or near the blower compartment.
  3. Remove the old filter and check its size (noted on the frame).
  4. Insert the new filter with the airflow arrow pointing in the right direction.
  5. Turn your AC back on and enjoy cleaner air!

Signs You Need to Change Your Filter Sooner

If you’re unsure whether it’s time to replace your AC filter, look out for these signs:

  • Increased energy bills – A dirty filter forces your AC to work harder.
  • Reduced airflow – If your home isn’t cooling efficiently, the filter might be clogged.
  • More dust in your home – A dirty filter can’t trap particles effectively.
  • Musty odors or poor air quality – If the air feels stale, your filter might be overdue for a change.

Keep Your AC Running Efficiently with Regular Maintenance

Replacing your AC filter is an easy way to improve your HVAC system’s efficiency and indoor air quality. However, routine maintenance is also essential. At Gabe’s Priority AC Service, we offer professional HVAC maintenance and repairs to keep your system in top shape. If you need help with your air filter or AC unit, contact our expert team today!