Manage unpleasant ammonia odours and moisture levels in your backyard chicken coops with Fresh Coop poultry deodorizer. Containing citric acid, diatomaceous earth, and calcium montmorillonite, this poultry coop odour control formula inhibits the bacteria and enzymes that produce ammonia. Ammonia can aggravate an animal's eyes, skin, and lungs, leaving them susceptible to infection.