[BrianG]

If you scroll down the page on the link that was posted, there is a video of a guy cleaning out a couple PCs with it. From what I can tell, pressure is about the same, but the blower has a bigger opening which means higher air flow at that pressure. And since it's just air, you don't have to worry about turning it upside-down like you do with a spray can (which just spits out snowy stuff).