How Often You Really Need to Change Your Air Filter

Cool Talk with Hartzell's | Your HVAC Questions, Answered! · Jul 20, 2026 · 19m · transcript

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Your air filter is the easiest way to protect the hardest working appliance in your home, and how often to change it is the question I get asked the most. In this one I walk through what that filter is really doing, guarding your equipment first and cleaning your air second, what a clogged filter does to your airflow and your coil, the old trick of holding it up to the light, and how often to swap the thin one inch filters versus the thicker pleated and media kind. I also cover why pets, allergies, and dust change the answer. Call 405-375-4822 or book at hartzellsheatair.com…