I agree cooling the air to well below ambient will remove humidity that
could condense on de-compression. I do not believe it will remove
particles or residual oil.

What is the point of bench-top cleaning if the first thing you do is to
re-contaminate the assembly?

Having worked in contamination control in electronics for over 30 years
- as many here will testify - I can assure you that nitrogen is the best
blowing gas at an affordable price, followed closely by the slightly
cheaper distilled bottled air. Those of you who inert their soldering
processes have a ready supply of nitrogen at virtually no extra cost;
why not use it?

Brian

Dehoyos, Ramon wrote:
>         A 600 dollar inline refrigerator does remove most of the particles and moisture when used after moisture trap and oil trap filtration. Nitrogen is not a necessity. Perhaps If the items were going to be used inside the human body or something like that. But for the average clean, it is not. Most of the time air blowing is used after bench cleaning. Final cleaning will remove any contaminants prior to CC.
>         Just my two
>         Ramon
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]]On Behalf Of Crepeau, Phil
> Sent: Tuesday, October 05, 2004 10:58 AM
> To: [log in to unmask]
> Subject: Re: [TN] Compressed air vs. ESD Concern
>
>
> i vote for nitrogen also.
>
> phil
>
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