Hoover Replacement HEPA Air Filter Type #201- Lot of 2 HEPA Media: Traps 99.97% dust and pollens down to 0.3 microns For Uprights with Hoover Twin Chamber System- Bagless WindTunnel Refer to owner's manual for model specific instructions *Unplug vacuum before replacing parts Part #43611049 Condition: Pristine. In original boxes. Boxes have wear from storage.