Well O.K not really an ash vac, but does mostly solve the ash dust problem: So no matter how much I try to get my wife to empty the ashes I still end up doing it about 80% of the time. Also I have an issue with fine motor control, which is a fancy way of saying that I'm clumsy. So, the inevitable cloud of airborne ash ensues. Then one day at the hardware store I pick-up a new furnace filter & bring it home. I bought a 20x16" instead of the 25x16 that I need. Didn't realize 'till I tried to swap it out. Instead of trying to take it back I just put it aside. The next time I created the ash cloud a lightbulb clicked. Taped that useless filter to the intake side of an old box fan and voila, ash filtration system!! Crank it to hi & set it right next to the ash bucket and it does a really good job catching the errant particles.