[TheForge] Dust/fumes mask

[Bruce Freeman]

Don,
I think you misunderstood.  They're not talking about
a SCBA. They're talking about a "supplied-air" system.
 Imagine taking your welding mask and extending it in
all directions with a fairly air-impermiable "cloth" -
which hung down your torso on all sides for some
distance.  Now bring a breathing-air supply into it,
near your mouth and nose.  All the air around your
face is breathable.  It's like you're in a little
positive pressure room.  Much simpler than SCBA.
Bruce
--- PlumDon at aol.com wrote:

> In a message dated 1/10/2008 7:46:47 PM Eastern
> Standard Time,  
> akfrosty at mtaonline.net writes:
> 
> If you make the individual bars so they drop into
> slots 
> in the  frame you can turn them over when they get
> too 
> beat up and it makes them  easy to replace after
> they 
> bet the tar beat out of them the second  time.
> 
> If you make the plenum in a hopper shape the 
> particulate debris  can settle in an easy to clean
> out 
> spot. 
> 
> A trick to keep the draft up is to cover the
> portions 
> of the bar  grate with sheet metal or other
> nonflamable 
> material.
>  
> Excellent suggestions, Frosty, thank you.
>  
> I got to get more serious about this issue and hope
> I can deal with it with 
> air movement and several masks. I would like NOT to
> go to a self contained  
> breathing apparatus
> because of the expense and confinement.
>  
> I did get a fairly good (I think) particulate mask
> from our local Sears  
> Hardware store and have ordered 
> some of the recommended welding masks on line. Next
> is to get more serious  
> air movement through the shop with the downdraft
> welding table and fans. I also 
>  suspect most of my problems are coming from the
> particulates from grinding,  
> sanding, cutting, etc.
>  
> Don Plummer
> 
> 
> 
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>
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