Know problem at all if your worried about it you could always put a fine filter material at the bottom to stop any debris being sucked up but 4Qman has had know problems at all with dust at the mo.
Yeah no dust as i just lay down some board first. I have the Rig on a shelf now so no dust and as Sacha said the setup is very quite as it has 6 yate Loon DS12 in push pull on a controller.
