Traps 95% of airborne dust and allergens;Permanent & Washable - Just hose off and reinstall;Replaces disposable furnace filters;Lifetime warranty;Self-charging electrostatic filter media - does not require electricity

• 16x20x1 Electrostatic Washable Permanent A/C Furnace Air Filter

16x20x1 Electrostatic Washable Permanent A/C Furnace Air FilterAirCare