I've got the extra fine paper bag hooked up inside my Fein Turbo II and couldn't be happier with it. Gets 99% of the dust and doesn't seem to blow through. The Fein has three additional features which I've found to be quite helpful: (1) it's got a built in switch which allows it to turn on in conjunction with the tool you're using...turn on the tool, the vac turns itself on (and vice-versa) (2) it's one of the quietest shop vacs I've used...I still use hearing protection, but it's probably half the volume of my old Sears shop vac (3) super flexible, long (15 ft. ?) hose with a swiveling disconnect.