THINK CRUCIAL Replacement HEPA Style Filter Fits Hoover Windtunnel Bagless, Washable and Reusable, Part 40140201 and 43611042 40140201 - The Home Depot
Replacement Pre Motor Filter for Hoover WindTunnel Air Uprights, This is the foam type washable primary filter By EnviroCare,USA - Walmart.com
Repl. Hoover Air Model Primary Filter, Washable, Part 303903001 | Think Crucial
440011434 Bh53220 Washable Filter For Hoover React Whole Home Cordless Vacuum Cleaner Bh53210 Bh53100 Bh53200 Replacement Parts - Vacuum Cleaner Parts - AliExpress
Amazon.com - Genuine Hoover Filter Kit to fit Hoover T-Series WindTunnel Bagless Upright- Includes Washable 303173001, and HEPA Cartridge 303172002 -
Amazon.com - HQRP Cartridge HEPA Filter compatible with Hoover 40130050, 43615090 Type 50 for all Fold Away & Turbo Power 3100 series WidePath Upright Vacuum Cleaners -