Rolf, 48%

[Paul Kupelian]

Jeff,
I would dispute that finding and claim.  They only restrict airflow if you
don't change them regularly at 90 day intervals.  Also, taking one of
these filters and comparing it to the chapies, you will be amazed at the
amount of stuff that gets trapped in them.  You should also see
significantly less dust in the house as well.
Paul Kupelian, RPT

On Mon, 26 Nov 2001, Jeff Tanner wrote:

> Rob Edwardsen wrote:
> >Does the 3M Filrete air filter need a special setup or does it just replace
> >your regular air filter?
> 
> 
> Hi Rob, others,
> It just replaces your regular 75 cent air filter.  Interesting thing
> happened to me in our new home a couple years back.  We had the Heat and
> Air folks come evaluate the efficiency of our air conditioning unit.  When
> the service man saw I'd been using these, he advised against it.  Said it
> cut down on the air flow and therefore caused the system to not operate as
> efficiently as it should, meaning higher heating/cooling bill.  Also said
> the cheap (electrostatic?) filters trapped just as much junk -- just change
> them every time you pay the bill.
> 
> Go figure.
> 
> Jeff Tanner
> Piano Technician
> School of Music
> University of South Carolina
> Columbia, SC 29208
> (803)-777-4392 (phone)
> 
>