This Febreze compatible air purifier filter replacement has a built-in carbon pre-filter that captures up to 99.97% of particles down to 0.3 microns in size.
For optimal performance, it is recommended to replace your filter every 4 months.
Febreze: FHT170W, FHT180W, FHT190W, FRF102B
Honeywell: HHT270, HHT270W, HHT290, HRF201B