Hoover Long-Life HEPA Cartridge Filter, 40140201
The pleated long-life HEPA cartridge filter fits inside of the dust compartment in Hoover bagless uprights with the Twin Chamber System. This HEPA filter can filter out 100% of dust mites and 99.8% of ragweed and common grass pollens.  This filter should be replaced every 3 to 6 months depending on the amount of use. The vacuums that use this filter are the Empower, Windtunnel Bagless Uprights, Savvy Bagless Uprights and the new Anniversary Bagless Uprights.