Signs It’s Time to Replace Your Home’s Air Filter

Your home’s air filter plays a crucial role in keeping your HVAC system running efficiently and maintaining indoor air quality.

While it’s recommended to change your air filter every 90 days, certain factors—like pets, allergies, or heavy HVAC usage—may require more frequent replacements. Here are key signs that indicate it’s time to swap out your filter.

1. Excessive Dirt and Dust Build-Up

A visibly clogged filter means restricted airflow, forcing your system to work harder and increasing energy consumption. If your filter looks thick with dust, it’s time for a replacement.

2. Allergy and Asthma Symptoms Worsen

If you or someone in your household is experiencing frequent sneezing, congestion, or worsened asthma indoors, a dirty air filter may be circulating allergens rather than trapping them.

3. Lingering Musty or Mouldy Odours

A stale or damp smell in your home—especially with poor ventilation or pets—can signal a clogged air filter. Pet fur and dander can also contribute to faster clogging, requiring more frequent filter changes.

4. HVAC System Frequently Stalls

A dirty filter restricts airflow, potentially causing your system to overwork and shut down unexpectedly, particularly in peak summer and winter months.

5. Drop in Humidity Levels

Your HVAC system helps regulate indoor humidity. If the air inside your home feels unusually dry, it could mean your filter isn’t allowing proper airflow.

6. Higher Energy Bills Without Explanation

A sudden spike in electricity costs could be due to your HVAC system straining against a clogged filter. Keeping your filter clean ensures efficient energy use.

Keep Your Air Clean with Georgian Water & Air

Georgian Water & Air provides high-quality air filtration systems, including HEPA filters, to improve your home’s air quality. Contact us today to explore our products or schedule an installation.