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The Bionaire 611D Air Cleaner Replacement Filter fits the following models of air cleaners:
This Bionaire 611D replacement filter is a dual air filter cartridge, with a main filter as well as a carbon filter. This Bionaire dual filter has approximate dimensions of 3 1/2" x 9 7/8" x 2". This dual filter replacement cartridge should be replaced every 3 to 6 months, depending on the Filter Condition Monitor.