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Originally posted by Gergor
Yes, I have "Dust-off". I think it's only supposed to be used to clean computer keyboard. |
Nope, it's also intended to be used to remove dust from electronics.
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It's definitely not dry, in fact, if you spray with the can tilted, the liquid will drip like from a faucet. There's a guy at work used it to clean his dusty computer motherboard, I warned him about it but he did it anyway, and the next thing he found out: the motherboard was fried. |
It's dry *unless* you spray with the can at an angle or upside-down. That's why it says explicity on the can "Always use product in an upright position." If the can is upright, what comes out is completely dry. If it's at an angle, you get the liquid form.
I've worked in hardware support and repair, and this stuff is widely used to remove dust and debrit from motherboards and other electronics -- with the caveat that you never spray with the can at an angle
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I'm holding a can right now, reading the label. it does not say anything about if it's ok to use on electronics. |
The advertisements for Dust Off say "Suitable for workstations, labs, repair benches, household use, on-location photography, etc." so clearly it's an intended use
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However, I found this, "NEVER USE ON CAMERA MIRRORS". It does not explain why, but it makes me wonder, if it's not supposed to be used on camera mirrors, is it ok to use it on laser lens? |
The use of compressed air on camera mirrors seems to be pretty controversial. Some people (and even some camera manufacturers) explicity say that you *should* use compressed air like Dust-Off. Others say you shouldn't, citing that the pressure from the compressed air can 1) wear down the delicate surface of the mirror; and/or 2) cause the mirror to misalign.
Whether either of those concerns is warranted, I don't know; but they are both concerns due to the *pressure* of the air cans, rather than the substance(s) that are being sprayed. As for cleaning CD/DVD/MD lenses, as long as you don't tilt the can (which causes the contents to be sprayed in liquid form), there should be no risk at all.