- Compatible with Febreze air purifier models: FHT170W, FHT180W, FHT190W, FHT170WCV, FHT180X, FHT180V, FHT190V, and Honeywell U filter HFR201B. Fits tabletop and tower models HHT270, HHT290 Series. Replacement part # FRF102B. - Features dual-layer filtration: An H13 True HEPA filter captures 99.97% of particles as small as 0.3 microns, while the activated carbon filter effectively reduces unpleasant odors, ensuring cleaner air in your home. - Convenient 4-pack filter replacement. Recommended replacement every 3-6 months or based on usage to maintain optimal performance and cost-effectiveness. - Ideal for various settings: Perfect for living rooms, bedrooms, and offices to improve air quality. Effective for allergy sufferers and pet owners seeking to reduce allergens and odors. - Commitment to satisfaction: If you are not fully satisfied with our replacement filter, please contact us for a prompt resolution.