How Often Should You Change Your HVAC Air Filters in Hobe Sound, FL?

The air filter is one of the most crucial components for keeping your HVAC system in Hobe Sound, FL, running efficiently. Consider the factors that determine how often you should change your air filters to get the best HVAC performance.

Filter Life Based on Size

The filter thickness is the first thing that determines how long a filter will last. Generally, the thicker the filter, the longer it’ll last since there’s more filtering material. Filters will commonly last:

  • Up to 90 days for 1-2 inch filters
  • Up to nine months for 3-4 inch filters
  • Up to a year for 5-6 inch filters

Filter Type

The basic filter is the flat fiberglass model, normally in the 1- and 2-inch sizes. Being that these have so little surface area, you may need to change them as frequently as every 30 days.

Home Size

You also need to consider the size of your home compared to the filter. For instance, a 2-inch filter may last three months in a 1,200 square foot home. However, put that same filter in a 2,200-square-foot space and you’ll have to change it more quickly.

Air Quality Considerations

Older homes, as well as those with pets and fireplaces, typically experience poor indoor air quality. These additional contaminants will clog your air filter more quickly, requiring more frequent changes. Checking your filter monthly is the best way to find how often you’ll need replacements.

Allergies and Asthma

Various airborne contaminants frequently trigger allergy and asthma symptoms. Your filter collects these contaminants, which can further trigger symptoms for those with high sensitivity. If you find your attacks are occurring on a cyclical basis, consider changing your filters more frequently.

Small particles will flow past the air filter and settle further in your system, requiring periodic cleaning. Call to schedule your AC maintenance with one of the NATE-certified comfort specialists at Ranger Air Conditioning.

Image provided by iStock

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