Supply a facemask/breathing filter and safety glasses. Even better, rip the side off the computer and dump it into a tub of warm soapyish water.
The crud in computers is unbelievable, heathwise its a minefield.
I think I'm still getting over inhaling a airborne trace of dust from 15 months ago, it got stuck in my throat at about Adams's apple area.
And its all too easy to just yank some wires out while still holding the screwdriver and stab yourself in the eye.
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