The Rubbermaid Commercial Products TCell 2. 0 system is a sleek odor control system that delivers a precise dose of high-quality fragrance blended with micro trans, a true odor neutralizer, for 30 or 45 days without the use of batteries. Easy to install and activate, it silently provides a pleasant restroom experience for approximately 3 to 4 stalls/fixtures or 6, 000 cubic feet of space. Mountable in a variety of locations, the battery-free operation requires no maintenance while controlling odors without interruption.