Don't suck, blow. Try those squeezy things that were used to clean old cameras. I don't know how they were called, but they have a rubber thing like a balloon which you squeeze and it blows air through a straw. I think it will do a better job than suction. (judging by how blowing the dust out of a cpu cooler requires much less powerful motor than sucking it in)
Yes I think using compressed air to blow is safer than sucking air with a vacuum Keep up the good work!