Well using a regular air compressor is considered a Bad Idea with computer parts, because they don't blow out pure air or propellants that dissipate like "canned air" products. Compressors blow out oil, moisture, et cetera. Even if this little unit doesn't end up with oil in the can, it'll probably end up with a lot of moisture condensing inside the air as it's compressed, and going into the can, and you end up spraying it out onto your electronics. How much moisture would be dependent on the humidity when you compressed it of course.
If you shop around you could probably get a few dozen cans of air for the same price, more convenient and more certain to be safe to use. I wouldn't expect using that compressor to outright kill many components, but the statistical odds are probably higher than regular canned air.