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  1. Step 1: Locate your indoor furnace or air handler
    1. Usually found in the basement or in the attic
  2. Step 2: Remove dirty filter
    1. Some are easy to see
    2. Some have protective covers
    3. Some are in the ceiling
    4. Tip: double check filter size
  3. Step 3: Insert the clean filter

All done!

 

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