How Often Should You Change Your A/C Filter

When properly maintained, your indoor heating and cooling system should provide many years of reliable comfort. One of the easiest ways you can help keep it operating at its best is through routine filter inspections and replacement. According to the U.S. Department of Energy, “Replacing a dirty, clogged filter with a clean one can lower your air conditioner's energy consumption by 5% to 15%.”

Proper filter maintenance starts with regular, monthly inspections. How often you should actually replace the filter will depend upon what type it is. Each filter manufacturer should have a recommended replacement schedule. If not, use the following as a guide:

1-inch filter

1-inch filters are typically the most basic type available and should generally be replaced every 30 days.

Pleated filter

Pleated filters come in a variety of thicknesses and provide a greater surface area for filtration. These filters typically can provide up to 6 months of protection. Inspect the filter every month, and replace the filter if you see excessive dust/dirt buildup. 

Electronic air cleaner / whole-home air purifier

Electronic air cleaners and whole home air purifiers like the Infinity® air purifier from Carrier use electronic filtering processes to remove airborne particles from the air. The Carrier® Infinity air purifier captures AND kills many airborne pathogens.* 

These more advanced filtering devices typically include a removable filter that should be inspected and replaced per the manufacturer’s recommendations. 

For more information about filter maintenance and indoor air quality in your home, contact us directly at 647-558-9951. We can evaluate your home and make recommendations on air cleaning products that may improve the air in your home.

*Based on third-party testing (2012) showing 95% of particles size 1.0 to 3.0 microns captured.

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