Hunter F1701HE/PM Cleanable HEPA Replacement Filter Air Purifier HT1701, 1 Pack

HEPA+ filters for Hunter model HT1701 Air Purifiers HEPA+ Filtration: Layered 2-in-1 Bamboo-Charcoal/HEPA filter uses long grain activated charcoal to remove harmful VOCs and odors as HEPA filtration media captures up to 99% of airborne particles as small as 0.3 microns, including dust, pollen, smoke, and other allergens. For best results the pre-filter should be changed every 3 months and the HEPA+ filter changed every 12-18 months depending on usage and conditions.