avi1708
Oxygen !!

I tried that it works with usb connected power & its not so powerful to pull the dust.Ask a computer shop for a "laptop vacuum"
Clean the dust using normal coloring/painting brush and if you can get a air blower (don't use hair dryer) or a can of compressed air, that would help a lot.
Which cabby do you have?
cotton cloth, be easy on parts
not the pure cotton onesisn't cleaning with a brush or cloth going to produce static charge?
all the hardware manuals warn specifically about that?