Air-Care Premium Permanent Washable Furnace Filter, 20-in x 20-in x 4-in

The Air-Care Premium Permanent Washable Furnace Filter, 20-in x 20-in x 4-in, is a reusable filter that saves you hundreds of dollars over its lifetime. As a permanent washable filter, it never needs replacement. It removes pollen and dust while meeting ASHRAE Standard 8, operating like a normal filter but with the added benefit of reusability. Its rigid steel frame and mesh are built to last. Air-Care recommends cleaning it every 4 to 6 weeks based on your home's air quality. The filter installs in seconds and greatly reduces the environmental impact of disposable filters. Pair it with an Air-Care Cleaner and Deodorizer for optimal performance.