I have the Clear Vue based on the Pentz principles. I exhaust outside, but have seen no evidence of anything outside. I'd check to see if you've sprung a leak in your dust bin. That would account for the dust going anywhere but in your bin. I don't have a sander, so not sure how mine would operate with one, but you don't hear of it as a problem. Jim.
Home of Irish Setter Rescue of North Texas
When Irish Eyes are smiling, they're usually up to something!!
At a minimum, I'm Pentatoxic...but most likely, I'm a Pentaholic. There seems to be no known cure. Pentatonix, winners of The Sing Off, season 3