With so many many many reports on dust blobs on the recent projectors, AE500 and Z2. I'm wondering why no AV Accessory manufacturor has not yet marketed a external air filter system (Tube/Box - Filter one end, fan the other) on an adjustable arm that you point towards the air intake on your projector. It would be cheap & Easy to make, and should sell well, as we are having £1000+ machines being taken apart after a few weeks/months by some owners trying to remove the dust. If we can clean the air by a resonable percentage BEFORE is gets to the projectors air intake filter, then surley this would be much improved. I know someone on here already made their own, and I intend to make my own also. I just find it weird no small manufacturor has not experimented making one commercially.