Toiletries for Cats: System Toilet This system toilet absorbs a week's worth of urine and the antibacterial agent strongly suppresses odors.* *Based on use by one cat (up to 8kg). Please remove feces promptly. Contains silver ions. 99.9% odor-causing bacteria suppressed.* *Odor-causing bacteria are those that easily produce ammonia from urine. Antibacterial test results by a third-party organization. Does not suppress all bacteria. Formulated with deodorizing microcapsules for powerful odor elimination. The white sheet surface makes it easy to see and check the color of the urine.