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The Importance of Changing Your HVAC Filters

Updated: Mar 18

Your HVAC filters are the unsung heroes of your entire cooling and heating system and you should change them regularly. They’re the last line of defense you have between yourself and harmful particulates like dust, dander, and pollen. If you’re not changing your filters at least every three months, you may be missing out on energy savings, lower utility bills, and better indoor air quality. We suggest our customers change their filters as recommended by the brand of filter. However, we strongly recommend you change your filters more frequently during periods of heavy HVAC use, like summer and winter.

Improve Indoor Air Quality


The quality of the air you breathe inside your home can affect the your health, too. Your air filters are designed to trap any particulates and dust that may irritate your respiratory system, but they can’t do that as effectively if they’re clogged. If someone in your home has nasal allergies, it’s even more important to change or clean your filters.

Ignoring dirty filters can lead to:

  • Reduced air flow

  • Up to 15% higher operating costs

  • Expensive duct cleaning services

  • Reduced system efficiency

  • Costly repairs

  • Potential health problems

Dirty Filters = Stressed System

When your filters are dirty, it’s much harder for your HVAC system to effectively move air out of your ducts and into your home. When air has to strain to get through clogged filters, your HVAC system is being stressed and that can lead to problems down the road.

An Inexpensive Investment

The harder your HVAC system has to work on a day-to-day basis, the shorter its lifespan. Changing your filters isn’t just an investment in your health, it’s an investment in one of your most expensive appliances! Keeping your filters clean is an easy and cost-effective way to keep HVAC problems at bay and to extend the life of its components.

We at 3HAC strongly recommend you take this simple and inexpensive measure to maintain your HVAC system and extend it’s life.

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