Paul Borian on fri 16 apr 10
I know this comes up from time to time on clayart - but a while back I
was reading about various air filtration/purification systems for
pottery studios and Michael Wendt mentioned that he has a really
effective one. Does anyone know which one he has?
Can anyone recommend other types that work well?
I know there are some kinds that vent the air directly outside while
others filter and re-circulate it. My impression is that the first kind
would be best for pottery since some particles are so fine that the
filters may not catch them.
Anyone care to comment?
Thanks,
Paul
Michael Wendt on fri 16 apr 10
Paul,
I built a filter housing to fit the inlet on our Trane high
efficiency furnace which is equipped with a Honeywell
electrostatic precipitator.
The pre filter is 24" x 24" x 4" pleated and is rated at 55%
efficiency.
This prefilter is changed every two months and sits atop the
deep V bag filter rated at 95% efficiency down to 1/2
micron.
Both filters are purchased from Grainger.
To monitor air quality we have 12" x 12" mirrors sitting
flat atop ware carts and other flat places throughout the
building and we check them at regular intervals to see how
well we a doing at house keeping.
The filters certainly do a great job of keeping dirt and
dust out of the furnace and its ducting and I think the air
in our workspace is cleaner by far than the air outdoors.
See a photo at the bottom of the clayart page on my web
site:
http://www.wendtpottery.com/clayart.htm
My next project is to build an air intake fan to pressurize
the building so that outside dust no longer gets in through
the small gaps common in most buildings.. I will filter the
fresh intake air through a HEPA filter before releasing it
into the room.
Regards,
Michael wendt
Paul wrote:
I know this comes up from time to time on clayart - but a
while back I
was reading about various air filtration/purification
systems for
pottery studios and Michael Wendt mentioned that he has a
really
effective one. Does anyone know which one he has?
Can anyone recommend other types that work well?
I know there are some kinds that vent the air directly
outside while
others filter and re-circulate it. My impression is that the
first kind
would be best for pottery since some particles are so fine
that the
filters may not catch them.
Anyone care to comment?
Thanks,
Paul
Ron Roy on fri 16 apr 10
Hi Douglas,
A hole in the wall is not a bad solution - an outside vacuum is better.
The hole in the wall works best when the wind is helping - if the wind
is blowing the wrong way it will not work as well.
RR
Quoting douglas fur <23drb50@GMAIL.COM>:
> Paul Borian
> I'm also looking into the same project. So I'd like to here what is said=
...
> *"My impression is that the first kind would be best for pottery since so=
me
> particles are so fine that the filters may not catch them."*
> Besides being being cheap I like the simplicity of a small fan and a hole
> through the wall. I see filter systems increasing in complexity and cost=
as
> the particles get smaller and the smallest particles are the most hazardo=
us
> so, of hand, the hole in the wall seems like the best buy for the health
> benefit gained.
> DRB
> Burien
>
douglas fur on fri 16 apr 10
Paul Borian
I'm also looking into the same project. So I'd like to here what is said..=
.
*"My impression is that the first kind would be best for pottery since some
particles are so fine that the filters may not catch them."*
Besides being being cheap I like the simplicity of a small fan and a hole
through the wall. I see filter systems increasing in complexity and cost a=
s
the particles get smaller and the smallest particles are the most hazardous
so, of hand, the hole in the wall seems like the best buy for the health
benefit gained.
DRB
Burien
David Finkelnburg on sat 17 apr 10
Paul,
Michael built his filter system which recirculates. Contact him through
his web page, http://www.wendtpottery.com
As DRB mentioned, simply exhausting air out of the studio is one way to
get rid of find particles--the ones that are potential health hazards--in
studio air. The benefit of such a system is it's simple and uses only a
small amount of electricity powering an inexpensive, low pressure drop
fan. A drawback, as you surely recognize, is that for every volume of air
blown out by a fan, an equal volume must be drawn in from outside. In
winter, this air pulled in either must be heated or the studio temperature
gets pretty low. :-( Thus, the fan energy saved may be spent on winter
heating.
Any system which recycles air through a filter to remove particles must
use electrical energy and the fan horsepower will increase with filter
pressure drop which goes up with air flow and decreasing filter opening
size. In other words, the more air you want to recirculate and the finer
you want to filter it the more powerful your fan will need to be. Michael
uses pre-filters to take out the big dust and reduce the clogging rate of
his fine filters.
Good potting,
Dave Finkelnburg
http://www.mattanddavesclays.com
-----------------------------
Date: Fri, 16 Apr 2010 12:45:03 -0400
From: Paul Borian
Subject: Air purification systems for studio - Michael Wendt?
I know this comes up from time to time on clayart - but a while back I
was reading about various air filtration/purification systems for
pottery studios and Michael Wendt mentioned that he has a really
effective one. Does anyone know which one he has?
Can anyone recommend other types that work well?
I know there are some kinds that vent the air directly outside while
others filter and re-circulate it. My impression is that the first kind
would be best for pottery since some particles are so fine that the
filters may not catch them.
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