Filtrete Replacement Filter, 11 7/8 x 18 3/4, MMMOAC250RF

Filtrete air cleaning filters snap easily into place. Replace filter every three months for maximum performance or when visibly dirty. Captures allergens like dust, smoke, smog, mold spores and pet dander from the air passing through the filter. Built-in activated carbon filter helps reduce odors. Filter Type: Filtrete® filter media and activated carbon; Filtration For: Smoke; Dust; Odors; Other Particles; Air Cleaner Compatibility: OAC250; Width: 18 3/4".