The Bank Vacuum disposable bags meet HEPA filtration standards of 99.97% efficiency at 0.3 microns. The bags are easy to change and have has the best filtration for a disposable bag. The bags are electro-statically charged, so they do not cause a lack of suction, they do not overwork the motor, and they remove all the dust. The Bank Vacuum bags are heat sealed so there are no chemicals on them, and they will not tear. The HEPA media filters remove the fine dust and pollen that we cannot see.