Ask Bob Home Maintenance When should I replace my HVAC filter?
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When should I replace my HVAC filter?

Replace standard fiberglass filters every 30 days. Pleated filters last up to 90 days. If you have pets, allergies, or live near construction, check monthly. A dirty filter restricts airflow, forcing your system to work harder. Mark replacement dates on your calendar or set a smartphone reminder.

Why It Matters

Regular filter changes improve air quality, reduce energy costs, and prevent HVAC system strain and breakdowns.

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