Your AC filter schedule depends on several factors. Here's a practical guide for Oklahoma homeowners.
At ARP Heat And Air, we've been helping Oklahoma homeowners with their HVAC needs since 2011. Our owner Charlie brings 14+ years of hands-on experience and is known for giving honest, practical advice — not trying to upsell you on services you don't need.
For standard 1-inch disposable filters, replace every 30-90 days. The exact timing depends on several factors specific to your home. Homes with pets should change filters every 30-45 days. Households with allergy sufferers should change every 30-45 days. Homes without pets or allergies can stretch to 60-90 days.
Oklahoma's high pollen counts (especially in spring), frequent dust storms, and red dirt mean your filter works harder than in many other states. During peak pollen season (March-May) and during dusty, windy periods, check your filter every 2 weeks and replace when it looks dirty.
Fiberglass filters (cheapest) should be replaced every 30 days. Pleated filters last 60-90 days. High-efficiency MERV 11-13 filters last 90 days but cost more. HEPA filters can last 6-12 months but require a system designed for them — using one in a standard system can restrict airflow and damage your equipment.
Hold your filter up to a light. If you can't see light through it, it's time to replace it regardless of when you last changed it. A clogged filter forces your system to work harder, increasing energy bills and potentially causing breakdowns.
If you have questions or need HVAC service in the OKC metro area, give us a call at (405) 413-0583. We offer free estimates, same-day service, and 24/7 emergency response.
Based in Edmond, OK, we serve 35+ cities across the Oklahoma City metro area. Oklahoma CIB License #00125054. A+ BBB Rated.