Isn't this the principle behind contamination-free zones like operation
theatres? Keeping a positive pressure so that air-borne particles cannot
move into the area, against the tide, as it were.
Sort of the opposite of maintaining a negative crank case pressure to stop
the oil seeping out (LBC content!)
Guy
----- Original Message -----
From "David Lieb" <dbl at chicagolandmgclub.com>
To: <spridgets@autox.team.net>
Sent: Sunday, August 31, 2003 4:14 PM
Subject: Re: Painting in garage
> I am not a painter. I have heard, however, that it is better to be
> pressurizing the painting area via a filtered fan and allowing the excess
to
> exit via filters.
> The rationale proposed was that when using the fan to exhaust the area,
air
> would enter through all of the crevices and seams that inevitably exist
> bringing dust particles with them.
> When pressurizing the paint booth, on the other hand, all of those same
> seams are letting air out and you r booth is more dust-free.
> It made sense to me in a purely theoretical way, but I am not a painter.
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