Regular replacement of the filter system with genuine Bissell filters helps your vacuum operate at peak efficiency. Style 8 HEPA media post motor vacuum filter. Captures over 99.9% of dust mites, pollens, and ragweed. Fits Bissell Lift-Off Model No. 3750, 37601, 4220, 6595, 6801, 6850, 6860, and 89Q9 series. 1 filter per package.