[rescue] Replacement for canned air?

Geoff Koehler koehler at shaw.ca
Thu Apr 8 15:17:14 CDT 2004

Bottled N2 is not that bad, because it only can dilute the oxygen in the air.  Nitrogen is 70% of air, so if you increase that concentration to 75% or so (decreasing the relative amount of O2), you can handle it for a while before things go black.   Acually, it sort of fades to grey, then black.  Its just O2 starvation, but nitrogen is not poisonous in itself.  CO2, however, is only 0.35% of air, and is a poisonous gas.  Its not as bad as CO, but is poisonous none the less.  One breath of pure CO2 will knock you out instantly.  Several more will kill you.


Cheers, Geoff

Geoff Koehler
Saskatoon, SK, Canada
Home of the SART Observatory

----- Original Message -----
From: adh at an.bradford.ma.us (Sandwich Maker)
Date: Thursday, April 8, 2004 1:25 pm
Subject: Re: [rescue] Replacement for canned air?

> "From: Geoff Koehler <koehler at shaw.ca>
> "
> "You've got to watch out with that.  Inhale a high concentration 
> of CO2 and you will hit the floor, *hard*.  Im not kidding.
> that would apply to bottled n2 or anything else without o2, in large
> quantities.
> ________________________________________________________________________
> Andrew Hay                                  the genius nature
> internet rambler                            is to see what all 
> have seen
> adh at an.bradford.ma.us                       and think what none 
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