MaximalPower VF HOV845 Replacement HEPA Filter for Hoover WindTunnel, EmPower and Savvy & Bagless Vacuum Cleaners with a Twin Chamber System Amazon.com is the only authorized dealer selling MaximalPower brand products. Please make sure your item is ONLY sold and shipped by Amazon.com! All other marketplace vendors are selling counterfeit products that do not perform the same, and/or are not covered by our MaximalPower Warranty. Replacement Universal HEPA filter for Hoover WindTunnel, EmPower, Savvy upright vacuum cleaners Replacement filter for Hoover Anniversary bagless upright vacuum cleaners equipped with the Twin Chamber System, including many popular models For part number: 40140201, 40140202, 42611049, 43611042 known as Type 201 filter and Hoover models: 5722, 5750, 6616, 6630, 6660, 8146 & 8147 Traps 99.97-Percentage of airborne pollutants 0.3 microns or larger including mold spores, pet dander, grass, ragweed pollen and other microscopic allergens Washable and reusable