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What Happens If You Don’t Change Your HVAC Filter?

December 6, 2022 | Blog

When was the last time you switched out your HVAC air filters? Here at Baldwin Heating & Cooling, we know that life can get busy, and simple household tasks can fall by the wayside. However, we’re strong advocates for consistent HVAC care in order to avoid expensive AC repairs. Our technicians are dependable and have lots of experience when it comes to keeping your air conditioner functioning at peak performance. Whether you’re in need of HVAC repairs, maintenance, or an installation appointment, we’ve got you covered.

Read on for more information about why you should change out your filters often, or chat with one of our friendly team members at any time!

Why You Should Change Your Air Filters Regularly

Are you interested in learning more about the importance of clean filters? Though each HVAC brand will have unique instructions on how often one should switch out filters, most experts agree that once every 2-3 months is the perfect amount of time. Depending on the number of people and pets in your household, once a quarter may be too long to wait. Another factor to consider is the season you are in. If it’s summer or fall, allergen levels are at their highest and could put more strain on your air filters.

How Do Old Filters Cause Poor Indoor Air Quality?

Wondering how dirty filters affect your indoor air quality levels? If your filter is old and hasn’t been changed in the last few months, it can affect your home’s humidity, ventilation and dust quantities.


Your household can become extremely humid when your air filters haven’t been switched out in a while. Mold and other growth can develop when the moisture reaches a certain point, putting you and your family at risk of respiratory disease and lung irritation.


Old air filters can decrease the efficiency of your HVAC system and cause your appliance to work harder than it should during a normal cycle. Filters accumulate all kinds of contaminants and allergens over time, which means that your air conditioner may not circulate air effectively when it’s full of pollutants.


When you haven’t changed your filters in a while, your eyes and nose may get irritated and itchy due to the high levels of dust and dirt in the air. Blockages in your air filters can be caused by anything from dead skin cells to pollen, pet dander, mold and many other kinds of allergens.

HVAC Breakdowns That Require Professional AC Maintenance

Some air conditioning issues require a specialist’s assistance and shouldn’t be done as DIY projects. These can include the following:

  • Lubricate moving parts
  • Wash off drain pans
  • Inspect refrigerant lines
  • Replace old pulleys or belts
  • Inspect the fan blower and blades
  • Clean the evaporator
  • Inspect any electrical connections and wiring
  • Clean the condenser

If you suspect your system isn’t running as it should, don’t delay. For thorough cooling system tune-ups and repairs, reach out to our team!

Contact Baldwin For Better Daphne Indoor Air Quality!

Are you ready to enjoy some peace of mind when it comes to the indoor air quality of your home? At Baldwin Heating & Cooling, we understand the importance of clean HVAC filters and are devoted to your and your family’s health. Whether you’re in need of an AC tune-up, repairs or a whole new appliance, we’ve got your back whenever you need us! Feel free to contact us through our website to set up an appointment or give us a call today!

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