We have a Honeywell unit. Inline with the HVAC forced air. Works
beautifully. I collect and display antiques in my home that require a lot
of dusting. When we run the HVAC a lot, we notice no dust build up. During
the recent fires we ran it to help clear the smoke smell from the
house....it worked. The attractor element is easy to slide out and
clean.....put it in the dishwasher. I am always amazed at the gunk it
collects from the air.
I think consumers reports did a write up on these whole house electrostatics
a few years ago and even very recently to.
It was expensive $450 or so as I recall . No it does not replace an
existing filter. This is not one of those passive filters that use static
to built up a charge. It has to have AC power too to run the high voltage
charge plates. You have to retrofit it somehere near the intake of the HVAC
fan. In my case I had the F300 Honeywell unit installed when the new HVAC
system was put in.BTW my wife also turns it on when she has allergy problems
like with pollen and it clears that up to.
It was an F300 i think......you can view it at the like below.
That is so called electronic air filter. My Honeywell one with Lenox
name plate has been working since '94. I wash them in the dish washer
once per season. I don't have any other filter.
And house is pretty dust free. Make sure the high tension wires don't break.
Thats NOT an electrostatic unit...
Thats an electronic unit, and they are not as good as a pleated element
unit, such as Airbear, or even the Honeywell pleated media units.
The industry likes to sell them, for profit, but for $400 you can get a
whole house true HEPA, and get twice the filtration.
--> Anybody know anything about these? I'm trying to get some real --> experiences instead of the general sales pitches on the web.
I've had the Honeywell for a few years, and to be honest I've been
underwhelmed. When it failed a couple years back and I had to have the main
circuit board replaced at about 2/3 - 3/4 the cost of a new unit, I had to
really think twice about it. I think any subsequent failure will cause me to
revert to good old high-quality traditional filters.
It does what it's supposed to, but I never sensed that it was doing anything
that a normal filter wouldn't do. Maybe it would be different if I ran it
24x7, but it's on when the furnace or sporadically used central AC is on, and
that's it. The house still gets quite dusty and the cat hair is still all
over the place and so forth.
Are you talking about a true electrostatic filter, or an electronic filter,
or a powered electrostatic filter?
Electrostatic filters, ones that actually use static electricity to filter
the air, tend to work great for a very short period of time, and then start
to reduce filtration. As the media starts to clog, the filtration rate goes
up again, as with ANY filter, but true electronic ones.
Electrostatic filters also tend to have a very high resistance, and if your
air duct system is not designed to handle the added resistance, you may find
that you have things like freezing AC coils later.
True electronic filters, use transformers to generate a high voltage across
a grid, using in most cases, a cheaper metal pre-filter to stop the larger
things from damaging the fine grid.
Static resistance in the airstream is lower than most, and they are not that
efficient. They also generate ozone as the particles are blasted, and as we
all know, O3 is not good in the home.
The electronicly charged electrostatic filters, use the 24VAC transformer in
the furnace, or air handler to charge the grid, generate no ozone and
generally work better than both the above mentioned filters.
Your best filter is a pleated paper type..like Honeywell, or AirBear.
The science behind both an electrostatic and an electronic filter I
assume is to impart an electrical charge on the dust particle just
before it transits the e-filter. This enables the charged dust
particle to be attracted to the filter element that presumably carries
the opposite charge.
Therefore in what way is a electrostatic filter different from an
electronic one? Aka how do they work?
The ozone is simply from the arc (in air). The dust particles are just
"promoting" arcing. You don't need dust to create ozone.
I believe the electrostatic ones _can_ arc too under the right conditions.
Electricity is, um, electricity. The difference is degree.
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.
Nope...you dont...however, the arcing is much more noticable when you have a
few particles that make it past.
If you have ever seen one, in a plexiglass duct for demonstration purposes,
you can see what I mean..
Normally around here, we get to see one like that at a trade show about once
a year, ...and if you wanna see the sales guy crap his pants, (seriously)
toss a little talcum into the intake..:)
You seem to be knowledgable on this subject. I have a few questions
that I wanted to post about this topic. I might as well ask them
1) Can you use 3M filters in a heat pump system? I heard that you
should not. If this is wrong, which one of the 3M filters should I
use? They have 3 different filters and MERV ratings. I was thinking of
using the least restrictive one which also happens to be the least
2) My house uses Trion electronic air clearners with those metal
pre-filters. Two units attached to the return duct just before it
enters the heat pump. They are a pain in the ass to clean especially
the one in the attic. Can I just turn the units off via their on/off
switch on the unit's front panel and install a 3M filter in the return
air grates in the ceiling? Biggest waste of money I ever spent. I
should have spent the money on upgraded compressors.
Its also overpriced.
3M I have never been an advocate of. While the filters are good, for the
most part, they are also retrictive as hell.
We have taken dozens out of otherwise dead systems, and suddenly, they go
back to working normally.
You can get a filter, at WalMart, Home Depot, Lowes, or anywhere else that
will work as well and not be as restrictive for about $2.
Sure can, and I know many that have done just that.
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