Q. Some time ago, you discussed the difference between static filters and paper filters for efficient furnaces. I purchased my furnace about three years ago and have the static filters. I find them… ...

But which is better for your furnace and your health -- a washable, reusable electrostatic filter or a disposable filter? That's what reader GB of Muskegon wants to know.

A. As far as I can determine, the furnace filters to which Paul Harvey lends his dulcet vocal tones in advertising are electrostatic filters. In general, this class of filters is pretty effective ...

In order to keep your furnace working to its optimal performance you need to either change or clean your furnace filter on a regular basis. But choosing the right filter is not as easy as it sounds.

Question: We have an airtight fuel-efficient house and we might need some room air cleaners in addition to our furnace air cleaner.