Dust from the system unit casing can be removed using

Dust from the system unit casing can be removed using an antistatic wipe or an static wipe. Antistatic wipes and static wipes are specially designed cloths that are used to clean electronic equipment without leaving behind any residue or static charge that could harm the equipment. They are safe to use on the casing of a computer system unit and can effectively remove dust and other debris. Cotton wool and a wet cloth are not recommended for cleaning the system unit casing as they can leave behind fibers or residue that could damage the equipment or cause a short circuit. Additionally, using a wet cloth could also potentially damage the electrical components inside the system unit.