Can I safely use an air compressor to clean the internal components of a computer or might hardware be damaged if the air compressor is too powerful?
A few comments from overclock.net:
I still use my 100 psi compressor fill it to like 50 or less and I blast away. After 2 years now nothing has been damaged. I've done it on a variety of motherboards, OEM and Enthusiast.
I haven't personally used it, but I see some people recommend it around here.
I just take my tower out to the garage and blow it out with a big compressor, I'm sure any one would do.
Some more details:
“Canned air” (pressure around 30 psi) may create static electricity, contain gases that are harmful to the environment and contain a chemical (to prevent abuse) that leaves a residue so “an inappropriate choice for cleaning anything users will come into contact with such as keyboards”.
Yet more details available here: Suck or blow? What's better for dust?
An air compressor is likely not safe. Although a small one might be OK, use caution.
Compressed air, in a can form is useful tool.
Be careful around moving parts, as to not strip or force them out of their casings (Fans).
Use short bursts at least 8 - 10 inches from the components so you do not produce condensation. This should really only be used for removing dust, not fine cleaning.