UpStart Battery Replacement Honeywell HCM-6009 Humidifier Filter - Compatible Honeywell HC-14 Air Filter Replacement Honeywell HCM-6009 Humidifier Filter Replaces Honeywell HC-14 Air 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!