jrjhoe
Super Freak
An air compressor could blow the dust off stuff pretty darn well, but it might also blow the stuff away with it. The architecture program at my university has a high power air compressor in the woodshop - professional quality.
I'm in the woodshop a good bit when I'm working on models and I get covered in sawdust pretty easily. A lot of the sawdust is pretty fine quality - like regular dust. A couple blasts from the air compressor though and my clothes are clean - no trace of sawdust.
I'm not sure I would use it on collectibles or anything fragile though. As long as you've got a good grip on the object it should be fine I suppose. But it's easily powerful enough to blow over a 1:6 figure. Maybe not a PF, but it sure would blow the clothes around on one.
Regular dust is less easy to remove than sawdust, I think. It sticks better together to the statue/bust etc. in question.