Cat litter odor problems usually result from ammonia, mercaptans, amines and skatole gases emitted from urine and feces. Many types of cat litter are not very effective at eliminating urine and fecal odors and the resulting stench is discomforting to humans. Ammonia can also be more than just a nuisance problem. It can cause airway defense mechanisms to be depressed, a higher rate of pneumonia, lower weight gains and damage to the respiratory tract. Smelleze? Cat Litter Deodorizer Additive was specially developed to absorb, neutralize and encapsulate offensive cat litter odors without masking them with fragrances. Smelleze? will create a cleaner, healthier, fresher smelling environment and enable you to enjoy your cat while it controls undesirable odors. To use, simply sprinkle Smelleze? Cat Litter Additive in regular and scoopable cat litter boxes and smell the difference. Add this safe, non-hazardous, natural product for extra odor protection between changes in litter boxes. It will help eliminate tough cat urine and fecal odor that ordinary litter boxes don't get rid of and keep your litter box and surrounding areas smelling fresher longer.