Patent ID: 8721402

Claim:
A product comprising: a dust collection device for a sanding tool comprising a bag having a sidewall with an inner surface and a coupler attached to the bag; the sidewall comprising at least one filter layer and an outer support layer; a sleeve having an outer surface, a sleeve sidewall with an inner surface, a first open end, a second open end, a first gap having a first gap area with an air flow path located at the first open end between the sleeve first open end and both the coupler and the inner surface of the bag and a second gap having a second gap area with an air flow path located at the second open end between the sleeve second open end and the inner surface of the bag; the sleeve constructed from a porous air permeable material; and the first open end positioned surrounding the coupler to direct incoming air through the sleeve and the sleeve apportioning more airflow through the first gap and the second gap as the permeability of the sleeve is reduced, and the sleeve is sized and positioned within the bag such that an air flow bypass volume is present between the outer surface and the inner surface.