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There is a product called RE-Air.
I got mine from CDW just to try it out.
It works ok. You can pressurize the can yourself. Turn it upside-down, refill it about 100 times (before risk of moisture builds).
It is under $20. You can use a hand-pump, compressor, or RE-Air compressor to fill the can.
No more frozen hands (or freezing spots on your co-workers), but it isn't too bad of an investment for the convenience.
I'd rate it about a 7 on a scale of 1-10.
I have used mine for almost 3 months now and refilled it a few times.
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I just used a powerful vaccum cleanear with a soft, non-metal, bristle attachment.
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Just worked on a computer, too much dust in the power supply.
The power supply burned up (Yes, caught fire) and took out 2 hard drives with it (replaced power supply and HD)(Loss of all pictures & documents not on disk). Kept telling her (my sister) to get the air and take care of the dust. Anyway, a bit late she now has the air (Sam's Club 4 x $10). I'm still working on rebuilding the hard drive for her. All the updates for Windows ME & Office 2000 then reconfiguring individual desktops for the kids and so on.
Don't wait to long, as did my sister!
