Filtrete Air Cleaning Filter FAPF03, Replacement Filter For The Filtrete Room Air Large FAP03-RS Unit Purifier, Advanced Filtrete Filtration Technology Effectively Captures 99.9% Of Airborne Particles & Allergens, Filter Change Indicator Senses The Particle Accumulation On The Filter, Taking The Guesswork Out Of Filter Change, No Ozone Generation, Filter Size 11.75" x 21.44" x .75".
