The Truth About HVAC Air Filter Changes: Monthly Isn’t Always Better

Common Air Filter Myths Exposed

One of the most persistent myths in the HVAC industry is that every homeowner needs to change their air filter monthly, no exceptions. At Jackson & Foster Heating & Air Conditioning, we regularly encounter clients who’ve been following this advice religiously, sometimes unnecessarily spending more money than they need to.

Let’s break down the reality of air filter maintenance:

Factors That Actually Determine Filter Change Frequency:

• Household size and occupancy
• Number of pets in the home
• Local air quality conditions
• Type of filter being used
• Season and HVAC usage patterns

The truth is, while some households might indeed need monthly filter changes, others can safely go 2-3 months between replacements. High-quality pleated filters often last longer than basic fiberglass ones, and homes without pets or allergies typically require less frequent changes.

How to Know When It’s Really Time to Change:

Instead of blindly following a calendar-based schedule, we recommend:
– Visually inspecting your filter every month
– Changing when you notice visible dirt accumulation
– Following manufacturer specifications for your specific filter type
– Adjusting frequency based on seasonal usage

Remember, over-changing filters isn’t just wasteful – it’s unnecessary for maintaining optimal system performance. If you’re unsure about your specific needs, Jackson & Foster technicians can help determine the ideal replacement schedule for your unique situation.

By understanding these facts, you can maintain your system efficiently while avoiding unnecessary expenses. It’s about smart maintenance, not just frequent maintenance.