When Do You Change Your Air Filters?

This is something that is so important to the life of your HVAC unit, but often forgotten about. It's very easy to forget about this very important piece of HVAC equipment too. Let’s face it our lives are very busy, and the last thing you will do when you wake up tomorrow morning is think “Hey it’s time for me to change that air filter thing on my furnace.” However, the life of your HVAC system is very dependent on the condition of your HVAC air filters. Having an old dirty air filter can freeze of air conditioner in the summer, and can effect most of the major parts on your furnace during our Kansas City winters.


We here at Mission Plumbing Heating and Cooling offer a yearly maintenance service agreement, and our highly qualified HVAC service techs always check the life of the air filter and change out air filters during these service calls. However, you should always check and possibly change the air filters in between HVAC check-ups. Changing the HVAC filter is actually something that is very easy for the homeowner to do. Here are two of the most common things homeowners have that get in the way of frequently changing the air filters:

  1. Knowing when to change the air conditioning and furnaces filter.
  2. Remembering when to change the filter.

When do you change the darn things?

Well we are glad you asked. Here is a basic guideline we have put together to help you know when you should be changing the HVAC air filters:

    • Vacation home or single occupant w/o pets or allergies: 6-12 months
    • "Average" suburban home w/o pets: every 90 days
    • Add a dog or cat: every 60 days
    • Add more than one pet or have allergies: 30-45 days

Need help remember when to change your air filter?
Please sign up for our air filter reminder email program.

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