Well, that would be ok for cleaning a large area, but you want to be able to get into the passages, and you need something like a blowgun with a siphon hose attached. Some blowguns have a couple hole drilled into the end of the barrel near the trigger so they will flow more air. Plug up one side & attach a hose to the other hole. That would work. If i knew how to make drawing's on the computer, I could show you what I mean, but I don't. Sorry, I am just a two finger picker on these thing's.
When I was in high school, bussiness class was a 'bird' class, if you just showed up, you passed. It was first period, so I usually slept off the night before.
Maybe if you stop by a parts store, a real one like NAPA where the people have been there for a while, they could show you what I am talking about. This is frustraighting for me, because I can't figure out how to explain it to you in simple, understandable terms. Not saying your at fault at all, no, it's all me.