Jim Elbrecht wrote:

On Tue, 16 Feb 2010 20:59:43 -0800 (PST), DerbyDad03
wrote:

I was looking at one of these "permanent" furnace filters at the Borg
the other day:

http://www.webproducts.com/Detail.bok?no=37

FWIW- my Dr. recommended the Bo-Air 15 [or so] years ago
http://www.riteair.com/
3 times as much as the ones at the Borg- but read on.

I bought one-- then decided it would be nice to be able to dry it
completely or soak it overnight, so I bought a second one at the Borg.
Patted myself on the back for getting it for a third of the cost of
the original. But I never felt like it was filtering as well. There
was a lot less visible stuff on the surface- so I always assumed it
was probably letting a lot more particles through.

When I replaced my furnace this summer I needed new filters because
the old ones were a different size. I couldn't remember the name of
the company that made my original & the sticker had fallen off years
ago.- so I started looking online. All the asthma, allergy &
'trouble breathing' groups were recommending the Bo-Air filters.

When it got here it was exactly the filter that I got way-back-when
that my Dr. had recommended.


My question:

After you rinse one of these can you put back in while it's still wet
or should you keep a spare "regular" filter on hand while the
electrostatic one dries out?

My thoughts were that the fine end of the filter was *so* fine that a
speck of dust would turn to concrete in a damp filter and render the
filter that much less efficient. Plus, I like to be able to
just grab the filter when my thermostat says it is time-- and do a
good job of cleaning at my leisure.

Jim

That Bo-Air page reads just like advertising for one of those $400 $20
electric heaters, with circular references, anecdotes and a complete
lack of technical detail.