search  current discussion  categories  safety - dust & fumes 

subject: re: clay dust

updated mon 9 sep 02

 

iandol on thu 5 sep 02


Does any one know anything about "Electrostatic Precipitation" of =
airborne solids? This sounds like a good way to get rid of the stuff =
which causes health problems.
Look forward to some input.
Best regards to all,
Ivor Lewis. Redhill, S. Australia

Alan D. Scott on fri 6 sep 02


A friend gave me a small ion generator to put in my studio. Within minutes
of turning it on, I noticed that the dust in the air seemed to drop to the
floor. (Out here in the Arizona desert, there's always lots of dust --
besides any clay dust present) Now it's a breeze to dust with a damp cloth
and damp mop the studio to keep it clean.

Alan Scott
The 3rd Cup Clayworks
Parker, AZ

Dave Finkelnburg on fri 6 sep 02


Ivor,
Homes and buildings with central heating and/or air conditioning
frequently also employ an electrostatic precipitator in the centralized unit
to remove dust from the recirculating air stream. I have a friend with one
of these and he claims it has practically removed all dust from his house.
That may be a bit of an exaggeration, but they do work.
Without getting too technical, I can tell you the electrostatic
precipitator works by attracting dust particles to a charged surface, and
periodically collecting the gathered dust into a hopper. Unlike a filter,
which picks up coarse dust most easily, an electrostatic precipitator works
best on the very finest (and most unhealthy) dust.
You remember from physics that P = IE, Power consumed equals Current
times Voltage? The precipitator uses very high voltage (thousands of
volts), thus low current and surprisingly little power.
In-home, or in studio, electrostatic precipitators are not cheap. The
last time I looked, one to fit in the central heating system for our modest
home would cost about $7,500US. On the other hand, what are your lungs
worth?
Speak to an HVAC (Heating, Ventilating and Air Conditioning) contractor
or equipment supplier for actual product information. It could be very nice
if you find information to share with all of us.
All the best,
Dave Finkelnburg in Idaho, looking forward to a lunch of
vine-ripened tomatos and just-ripe sweet corn :-)

----- Original Message -----
From: "iandol"
Does any one know anything about "Electrostatic Precipitation" of airborne
solids? This sounds like a good way to get rid of the stuff which causes
health problems.

Wes Rolley on fri 6 sep 02


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At 04:05 AM 9/5/02 +0930, you wrote:

>Does any one know anything about "Electrostatic Precipitation" of airborne=
=20
>solids? This sounds like a good way to get rid of the stuff which causes=20
>health problems.
>Look forward to some input.

My experience with electrostatic precipitators used to clean the air was in=
=20
a computer room. A major airline used that method to clean the air in=20
their main reservations / maintenance computer center. It was very=20
effective and took out particles of 1 micron or less. A side effect was=20
that it increased the amount of ozone in the air which had an oxidizing=20
effect on certain materials, especially those made of latex. For example,=
=20
certain paints became "tacky", valves in vacuum columns failed at a rate=20
2X normal, etc.

Eventually, they replaced the system with one using a 1-micron filter.




Wesley C. Rolley
17211 Quail Court
Morgan Hill, CA 95037
wrolley@charter.net
(408)778-3024

I have been impressed with the urgency of doing.
Knowing is not enough; we must apply.
Being willing is not enough;
We must do. =96Leonardo DaVinci

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iandol on sat 7 sep 02


Dear Dave Finkelnburg,

Hello again. Enjoy your goodies from the veggie patch. We are into the =
Asparagus in a big way at the moment.

Thanks for coming in on this idea of using an electrostatic =
precipitator. I will turn to my Enc. Brit to see if there are any =
diagrams. I like the idea of getting rid of the ultra fines.

Best regards,

Ivor.

Ron Roy on sat 7 sep 02


The problem is - ozone is generated and that is not a good thing to be
breathing all the time.

It may be possible that there are some that don't produce ozone but you
will need an independent assessment - not the evaluation of the
manufacturer.

RR


>Does any one know anything about "Electrostatic Precipitation" of airborne
>solids? This sounds like a good way to get rid of the stuff which causes
>health problems.
>Look forward to some input.
>Best regards to all,
>Ivor Lewis. Redhill, S. Australia


Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513

Marianne Lombardo on sat 7 sep 02


Yes. In our previous house, we had one of these things installed on the
furnace. Unfortunately, we couldn't use it at all. Both myself and my
daughter were getting continuous nose bleeds from the ozone produced. At
first, we were sneezing, then developed sore lining of the nostrils, and
then the nosebleeds began.

Last year we changed our forced air furnace from electric to gas. I asked
the installer if the electronic "zappers" were any better. He said no, they
still produce ozone which affects people that are sensitive to it.

Marianne Lombardo
Omemee, Ontario, Canada
email: mlombardo@nexicom.net

> The problem is - ozone is generated and that is not a good thing to be
> breathing all the time.

Ingeborg Foco on sat 7 sep 02


Ron said:

The problem is - ozone is generated and that is not a good thing to be
> breathing all the time.

Ron,

I purchased an ozone machine to get rid of all of the mold and mildew on our
boat. It was most unpleasant breathing the mold. I would wake up in the
middle of the night and smell the mold in the pillows. After running the
ozone machine for a week or so....viola, all of the mold was gone. Great I
thought......until my husband read that the ozone machine eats
rubber....yikes!

Probably takes a hundred years but since all of the hatches have rubber
gaskets/seals no more ozone machine on the boat. Now I keep it in the house
near the shower. We live in SW Florida and it is hot and steamy and the
perfect environment for mold and mildew.

I have not heard anything about the ozone machine being bad for general
breathing. Could you
elaborate on this.

Sincerely,


Ingeborg
the Potter's Workshop & Gallery
St. James City, Florida
----- Original Message -----

>> >

SAM YANCY on sun 8 sep 02


I would like more info on the oxone machine you purchased and are using. Here on
the west coast, close to the pacific ocean with all the fog and such, It might
be worth buying. The house seems aways damp. Thanks for the info in advance. Sam

Ingeborg Foco wrote:

> Ron said:
>
> The problem is - ozone is generated and that is not a good thing to be
> > breathing all the time.
>
> Ron,
>
> I purchased an ozone machine to get rid of all of the mold and mildew on our
> boat. It was most unpleasant breathing the mold. I would wake up in the
> middle of the night and smell the mold in the pillows. After running the
> ozone machine for a week or so....viola, all of the mold was gone. Great I
> thought......until my husband read that the ozone machine eats
> rubber....yikes!
>
> Probably takes a hundred years but since all of the hatches have rubber
> gaskets/seals no more ozone machine on the boat. Now I keep it in the house
> near the shower. We live in SW Florida and it is hot and steamy and the
> perfect environment for mold and mildew.
>
> I have not heard anything about the ozone machine being bad for general
> breathing. Could you
> elaborate on this.
>
> Sincerely,
>
> Ingeborg
> the Potter's Workshop & Gallery
> St. James City, Florida
> ----- Original Message -----
>
> >> >
>
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