HEPA Air Purifier Filter to fit Fellowes AP-300PH Air Purifier - Compare to Part # HF-300; By LifeSupplyUSA HEPA Air Purifier Filter to fit Fellowes AP-300PH Air Purifier - Compare to Part # HF-300 Replaces Part # HF 300 fits Fellowes AP 300PH Air Purifier (9370101) Helps effectively filter airborne irritants such as smoke, pollen, dust, mold spores, pet dander and fabric fibers. By LifeSupplyUSA