How often should I change my HVAC system’s air filters?

The frequency of air filter replacement depends on filter type, household conditions, and HVAC usage, but regularly changing your filter is essential for better air quality and system efficiency. General guidelines for replacement include:

• Standard Filters (1–3 inches): Every 1 to 3 months
• High-Efficiency Filters (4–5 inches): Every 6 to 12 months
• HEPA Filters: Every 12 to 18 months
• Activated Carbon Filters: Every 2 to 3 months

Homes with pets, allergies, or high dust levels may need more frequent changes to prevent airflow restrictions and maintain indoor air quality. At Radiant Plumbing & Air Conditioning, we help homeowners in Austin and San Antonio keep their HVAC systems running efficiently with expert air quality solutions and maintenance services.