2-Pack Replacement HWF100 Humidifier Filter for Holmes, Bionaire, Sunbeam - Compatible with Holmes HM630, Bionaire BCM646, Holmes HWF100, Sunbeam SCM630, Bionaire BCM740B, Sunbeam SCM7808, Bionaire BWF100, Sunbeam SCM2412, Sunbeam SCM2410 2-Pack Replacement HWF100 Humidifier Filter for Holmes, Bionaire, Sunbeam - Compatible with Holmes HM630, Bionaire BCM646, Holmes HWF100, Sunbeam SCM630, Bionaire BCM740B, Sunbeam SCM7808, Bionaire BWF100, Sunbeam SCM2412, Sunbeam SCM2410, Sunbeam SCM2401, Sunbeam SCM2400, Sunbeam SCM631, Sunbeam SCM7809, Bionaire BCM7205, Bionaire BCM645, Bionaire BCM7204, Bionaire BCM7309, Bionaire BCM7305, Bionaire BCM6010RC, Bionaire BCM5520RC, Holmes HWF100-UC3, Holmes HM7306, Holmes HM729, Holmes HM6000 Replaces HWF100 Humidifier Filter Traps Water Impurities & Dissolved Solids Before They Become Airborne For best results, change air filter at least once per season or more often depending on air quality and use. Essential for Allergy Sufferers. On Sale for a Limited Time!