How Often Should You Change Your Air Filter?
3 min read
A simple maintenance task that can improve efficiency and indoor air quality.
The general rule
Most 1-inch filters should be replaced every 30-90 days. Thicker 4- to 5-inch media filters can last 6-12 months. The right interval depends on your home, not just the calendar.
Replace more often if you have…
Pets, allergies, a large household, or someone in the home who smokes. Running your system heavily during peak summer or winter also loads filters faster.
Why it matters
A clogged filter forces your blower to work harder, raises energy bills, and can lead to frozen coils or premature failure. A clean filter is the single cheapest way to protect your system and your indoor air quality.
Need a hand from a pro?
Our Frost & Flame technicians are ready to help with anything in this guide.
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