RE: I'm not, but Why can't I

["PHINNEY,HARRY K (HP-Corvallis,ex1)" <harry_phinney@hp.com>]

Eric Miller wrote:  
 
>  "From the air compressor (which you sit outside to draw in 
>  fresh air) I put
>  a pressure regulator to drop the pressure to about 1 or 2 
>  psi.  You can buy
>  these regulators any place that has air stuff for about $14. 
>   They have a
>  yellow adjustment knob.  I then ran a 1/4 inch low pressure 
>  tube to my
>  respirator.

This is dangerous if done with an oil lubricated compressor. A normal "wet"
type of compressor will produce an air stream with hydrocarbons, and CO.
Companies like SAS (Survival Air Systems) sell filters that will produce
breathable air from standard compressors, but these systems cost as much as
standalone supplied air systems, in large part due to the cost of the
required CO monitor.  The filter runs $200-$300, and the CO monitor is
$400-$500.

Harry Phinney

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