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Home care

The right furnace filter

A small maintenance habit that protects comfort, airflow, and expensive equipment.

Why it makes the list

Useful first. Good-looking is a welcome bonus.

I keep the correct size on hand and change it before the system has to ask. The best filter is not always the highest rating. It is the one your system can move air through comfortably and you will replace on schedule.

The good

  • Easy, inexpensive preventive care
  • Helps reduce dust through the system
  • Simple to keep on a recurring schedule

Worth knowing

  • Sizing must be exact
  • Higher MERV is not automatically better
  • Replacement timing varies by home and system

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