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digger
AC Filter

We need a 20x30 filter for our central air. They seem to range in price from $3 to $30 and up.
What should I be looking for and is there one brand better than the next ?
Is a HEPA filter necessary ?

Thanks for your time.

A. Spruce
Re: AC Filter

A pleated filter gives the best filtration.

I don't personally believe that HEPA filtration for a furnace is either effective or necessary.

digger
Re: AC Filter

Not sure if this makes a difference in your answer but this is for a central air not a furnace. The central air in our house is separate from out boiler.

A. Spruce
Re: AC Filter

Nope! Answer is still the same. :)

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