How Often Should I Change My HVAC System’s Air Filter?

Posted on: April 29, 2016

Changing your HVAC’s air filter is the most important self-maintenance you can do to keep your HVAC system running smoothly, extend the lifespan of your cooling/heating system, save on utility bills, and keep your home’s air quality healthy.

But how do you know when and how often you should be replacing your HVAC system’s air filter?

Well, there are several factors that can affect how often an air filter needs changed, some of those are:

  • Home’s location
  • Number of people in household
  • Climate
  • Type of HVAC/filter
  • Quality of your city’s air/pollution

You should check and/or change your HVAC’s air filter at least twice a month if any of these conditions apply to your home:

  • In a consistently humid climate
  • Have pets
  • Persons living in the house with respiratory problems or allergies
  • Frequently use a fireplace
  • Run your AC 6+ months out of the year
  • Live in a windy or fire prone area

For homes with these conditions, it is best to have a continual supply of filters. Action Air offers cost efficient packs and will help you determine which type of air filters are best for your HVAC system to insure maximum air quality and savings.

Action Air Tip: Even if your filter is not dirty, be sure to check for dampness, mold or moisture, especially if you live in a humid climate. Immediately change your air filter if you see any signs of moisture as it can lead to mold and result in health problems.

If your home does not have pets, is a single occupant home, and has quality outdoor air, your air filter can go as long as 3 months before needing to be replaced. However, you should always check your air filter at least once a month, especially during the months where your AC is consistently running.

If your HVAC air filter seems to get dirty quickly – even after you just changed it – try a different type of air filter. There are more types of air filter than you may think, including:

Depending on your HVAC system and home’s conditions, a specific type of air filter could prove to be more efficient – even if the price of the filter is more upfront, it could last much longer than economy panels. Call 800 400-4152 or contact our comfort specialists online to help you decide which type of air filter is best for your HVAC system.