[filmscanners] Re: Canned air...

["Arthur Entlich" <artistic-1@shaw.ca>]

I did further research on 1,1-difluorethane, and the toxicity is not
considered very high.  It can cause a "drunkenness" if concentrations
are high enough to replace oxygen and in concentrations like 500,000
parts per million it can be toxic.  They even suggest 50,000 parts per
million not likely to have any permanent effect.

The warnings are there mainly because some people like to abuse
propellants by breathing them via a plastic bag, etc, and indeed you can
freeze a lung or poison yourself that way, so they want people to take
extra heed.  Under normal use, the EPA and OSHA and several other
reports I read consider this propellant one of the safer ones.

Again, I do not wish to promote these propellant based dust removers, as
I think compressed air is a better alternative.  Also, consider the
implications of the manufacturing of these halogenated gases, and the
toss away cans, etc.

Art

Austin Franklin wrote:

>>>Hi Arthur,
>>>
>>>>(and besides its bad for the environment (including
>>>>your own personal one)
>>>>
>>>I thought it was more so those that used CFC based
>>>propellants that were
>>>(really) "bad for the environment", and that the "CFC Free"
>>>ones were not near as "bad".  The one I use has
>>>difluoroethane, and states "%100 safe for the ozone".  I did
>>>a web search on it, and I wasn't able to turn up anything
>>>substantive with a quick glance.  Do you have more
>>>information on this?
>>>
>>You should be able to obtain more information on difluoroethane from the
>>writing on the can. This is what is on mine: "Do not deliberately
>>concentrate and/or inhale this product. You could instantly die, suffer
>>brain damage, or other dangerous and permanent health effects." But I've
>>been "using as directed," and I'm still alive and kicking.
>>
>
> Wow!  Thanks Frank.  My can does not say that...it has a FAR more toned down
> warning, and little pictures of in ear, in mouth and upside down, all with
> squares with a diagonal bar through them.  Think I'll stay away from canned
> air with THAT in it.
>
> Gee, good for the ozone, but sounds like REALLY bad for me.  Nice
> compromise.
>
> Austin
>
>


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