Computers get dirty. They are basically dust sucking machines with their fans drawing dust in all day long. The computer's CPU in particular gets filled with dust. The problem arises that the dust collects on computer components and then attracts water so that the computer can get corroded. In time this can completely destroy the computer. Tablets tend not to have this problem, but laptops and desktop computers do.
Whenever a computer comes into our workshop we not only give the software a clean up but a physical clean too. Removing the dust regularly can substantially increase the lifetime of a laptop or desktop. We use various tools for this but a significant part of the process involves blowing compressed air through the computer. Traditionally, this has come in the form of cans of compressed air. We would buy them in boxes of 6, and end up going through many cans of air in a month.
This has bothered us for some time. All those cans going into dump. It's just seems like a great way to add to the pollution in this world. Not good. Air compressors are usually very noisy and only suitable for factories not workshops.
BUT...we finally found one that is not insanely loud and we can use in the workshop. Instead of cans we now charge up the compressor each morning and use that for our clean up.
The great news is that we no longer buy and throw away cans of compressed air and still computers are staying cool and clean. It's only a tiny difference but every little things helps - We're saving the planet...6 cans at a time. Thanks for helping.