Hank Murrow on sat 29 jan 05
On Jan 29, 2005, at 7:01 PM, Maurice Weitman wrote:
>
> But what do you do about achieving such a seal for those of us with
> beards? Last time I saw you, your beard looked quite a bit like
> mine, if less grey.
>
> Shaving my beard is not an option, I'm afraid. The last time I was
> without a beard was shortly before my divorce in 1974.
Dear Maurice and Bearded Potters All;
Have a look at this device, which someone posted recently. Picks up
particulates, if not fumes. Main deal is it will solve the beard
problem.
Cheers, Hank
www.murrow.biz/hank
Kathy Forer on sat 29 jan 05
On Jan 29, 2005, at 10:01 PM, Maurice Weitman wrote:
> Yet when I remove the mask after using it for more than a few
> minutes, I strongly smell things I could not smell while wearing it.
>
> [...]
>
> It seems to me a greater danger lies in later breathing the stuff
> that's caught in my beard and on my clothing.
Your beard is probably a good filter. Make sure to vacuum it now and
then.
Kathy Forer, Locust, NJ
Jo Smith on sat 29 jan 05
Someone said that they used a 3M dust mask that came in sizes but didn't =
give the model #. They only one that their web site recommended was 3MT =
Respirator R8511ES N95 , and it is similar to what I have been using, =
which leaks. Any way my glasses fog up when using....Let me know which =
one you are using..Thanks Jo
Vince Pitelka on sat 29 jan 05
Someone said that they used a 3M dust mask that came in sizes but didn't
give the model #. They only one that their web site recommended was 3MT
Respirator R8511ES N95 , and it is similar to what I have been using, which
leaks. Any way my glasses fog up when using....Let me know which one you
are using..Thanks Jo
Jo -
I do not know about that particular 3-M dust mask, but I hope it is a
twin-element mask with a resilient rubber face-piece. Too many people are
wearing poor-quality or poorly-fitting respirators in studio use, and I hate
to think what they are doing to their lungs. The following is an exert from
my September, 2004 Claytimes "Tooltimes" column:
"I like the Willson Premier Half-Mask Silicone Respirator. Go to LSS.com and
type those exact words in the search box. Initially just order the bare
face piece. Get the one you think will be appropriate for your face - part
#7523S (small), #7523M (medium), or #7523L (large). Once you receive it,
make sure it fits, and then order the necessary accessories. Only a
certified expert can truly rate the fit, but you can do a quick self check.
With the mask strapped to your face, cover the two cartridge attachment
ports and try to breath in. There should be no air leakage around the mask.
When you are satisfied with the fit, go back to the page for this
respirator, and click the little icon that says "QuickView Selection
Guides." Scroll down to "N95 Filter/Prefilter" and order the package of
twenty N95 prefilters, part #41363, the package of filter bases, part #7524,
and the package of retainer caps, part #38581. You will spend around $100
altogether, but you will have a very high quality respirator with all
replacement parts available. Most respirators purchased from ceramic
suppliers or your local home improvement center usually compromise fit, and
they inevitably get thrown away when the elastic straps stretch out. With
the respirators available from Lab Safety Supply, you can order new straps,
and you can also purchase cartridges to protect against almost any kinds of
paints, thinners, and solvents."
Hope this helps -
- Vince
Vince Pitelka
Appalachian Center for Craft, Tennessee Technological University
Smithville TN 37166, 615/597-6801 x111
vpitelka@dtccom.net, wpitelka@tntech.edu
http://iweb.tntech.edu/wpitelka/
http://www.tntech.edu/craftcenter/
Maurice Weitman on sat 29 jan 05
Hello, Vince,
I agree with the importance you and others place on wearing a good
mask that fits well.
You wrote, in part:
>Only a certified expert can truly rate the fit, but you can do a
>quick self check.
>With the mask strapped to your face, cover the two cartridge attachment
>ports and try to breath in. There should be no air leakage around the mask.
But what do you do about achieving such a seal for those of us with
beards? Last time I saw you, your beard looked quite a bit like
mine, if less grey.
Shaving my beard is not an option, I'm afraid. The last time I was
without a beard was shortly before my divorce in 1974.
I believe my mask fits my head and face very well, but when I do the
self-tests (covering the inlets while inhaling, and covering the
exhaust while exhaling), I can get some air to move through my beard.
Yet when I remove the mask after using it for more than a few
minutes, I strongly smell things I could not smell while wearing it.
So... to my (perhaps rationalizing) way of thinking, the mask's seal
is "good enough" to prevent infiltration through the beard given the
relative ease that air travels through the filters. The path of
least resistance trick.
What do you think? Does your mask fit better? Should I not rest
until I get a better fit?
It seems to me a greater danger lies in later breathing the stuff
that's caught in my beard and on my clothing.
Thanks.
Regards,
Maurice
Mike Gordon on sun 30 jan 05
On Jan 29, 2005, at 7:01 PM, Maurice Weitman wrote:
>
But what do you do about achieving such a seal for those of us with
beards? Last time I saw you, your beard looked quite a bit like
mine, if less grey.
I wrote Manona Rossol about this very topic, respirator's and beards,
in reference to vacuuming up rat droppings in my studio. She said get a
respirator like Vince described, with a good fit. When I told her I had
a beard she replied " shave it or forget it ". I was worried about the
disease that is spread by mice droppings that I had read about in the
paper, but since I had used the house vac to start the job before I
remembered about "the droppings " thing I went out and bought a hepa
filter shop vac and finished the job. I still have the beard too. Mike
Gordon
>
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