Honeywell, Hepaclean Table Top Air Purifier, Captures Up To 99% Of Fine Airborne Particles Such As Dust, Pollen, Smoke & Pet Dander1, Manual Control 3 Air Cleaning Levels, Electronic Filter Change Reminder, Dual Action Hepa Type Filter Includes Activated Carbon Pre-Filter Layer To Help Reduce Odors, AHAM CADR: 55, Room Size: 8.5' x 10', 85 SQFT, Replace Hepa Type Filter Every 4 Months, For Replacement Filter Use TV #227-771.