Product Detail Advanced air cleaning device for ammonia, amines and ammonia-based odors and particles. 21 pounds of gas phase media for powerful gas removal Coverage area of 1200 sq ft (based on maximum fan speed and an 8.5 ft ceiling) . The "IQAir Ammonia GCX Air Purifier" is best product for you. We recommended IQAir Ammonia GCX Air Purifier