<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, 19 Dec 2021 at 21:22, James <<a href="mailto:jam@tigger.ws">jam@tigger.ws</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
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Bob it is the air and dust moving, not some magic property of vacuum cleaners, that generates the static electricity. Think of lightning in a volcano.<br>
I use a stiff bush that has (repeatedly) been dipped in water. I know HP wash and dry their boards. This area is difficult and fraught.<br>
James<br>
_______________________________________________<br><br></blockquote><div><br></div><div>I have to admit that's something I hadn't thought to worry about. I wouldn't stick a vacuum nozzle inside a computer but my cleaner has a 'blow' mode (I'm not sure why) and that's what I've always used.</div><div><br></div><div>It's quite powerful so the nozzle will be at least 12" away from the components, but I hadn't though about generating static in the air.</div><div><br></div><div>I was concerned about how fast it spins up the fans and whether they would generate significant voltages, so I stick a cocktail stick in the spokes to stop them doing that. It also makes a lot of dust so I take the computers outside which might help a bit with static I suppose (damper air?)</div><div><br></div><div>I guess now I know though I'll have to use 'air duster' cans but that's one more thing to buy and throw away :-( I do have a can and the instructions are quite emphatic about not tilting it otherwise the propellant can come out, which make getting into the crevices of a computer a bit awkward even before I've lost the little pipe.</div><div><br></div><div><br></div></div></div>