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The air filter aisle at most hardware stores can make a person feel a bit giddy. So many to choose from and, well, so little direction on which filter would make the ideal choice. Do you grab-and-go ...

A furnace filter should be changed about once every three months. A furnace filter should be changed more often in the event of pollen, construction dust, cold spells, or other amplifying factors.

Our recent article about energy-recovery ventilators (Ventilate Your Home with Minimal Energy Loss) stated that using a “true high-efficiency particulate air (HEPA) filter” in your forced-air heating ...

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