You may have seen people using leaf blowers to clean the dust off their computers and wondered if it is safe. The answer is: Leaf blowers are just ok for cleaning PCs. Leaf blowers can blow the dust off your computer, but they do not have enough direction to actually get all the dust out of the crevices and hard-to-reach places. As a result, you may end up just blowing the dust around and not actually getting rid of it. It is better to use an air compressor since it has more power and can be angled to reach every inch of your computer.