why dust blower? i usually use those rechargeable vacuum to suck it (power cannot set to high or risk spoiling components)
if your desktop never clean for 2-3 years you can forget it as they are "sticked" to your hardware, need to "blow" every 6 months or at least yearly.


Cos blowing more effective than sucking in removing dust![]()
Alternative is to pair the blower with an anti static brush and to lightly brush off the stubborn dust.