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SESK: Stuff Everyone Should Know · sesk.info/dad-ac-filter-savings

The DOE says routinely replacing or cleaning air conditioner filters can lower its energy use by about how much?

About 5% to 15%.

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  1. About 1% to 2%
  2. About 5% to 15% ✔
  3. About 40% to 50%

Why: The Department of Energy says a clogged filter restricts airflow, which lowers efficiency and cooling. Routinely replacing or cleaning filters can lower an air conditioner's energy use by 5 to 15 percent.

Huh, didn't know that: DOE calls regularly cleaning and replacing filters the quickest way to save energy on home cooling.

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References

Answer: About 5% to 15%. The Department of Energy says a clogged filter restricts airflow, which lowers efficiency and cooling. Routinely replacing or cleaning filters can lower an air conditioner's energy use by 5 to 15 percent.

  1. DOE Energy Saver 101: Home Cooling (PDF) www.energy.gov/sites/prod/files/2014/06/f16/HomeCooling101.pdf
    Routinely replace or clean your air filters -- it can lower your air conditioner's energy consumption by 5-15 percent.
    Checked 2026-10-10.

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