TCell™ Odor Control System by Technical Concepts, is an eco-friendlier solution for a consistently fresh environment. An innovative system that operates without batteries. With two adjustable settings to prolong refill life, one dispenser covers a generous 6000 cubic feet. Unlike conventional gel systems that lose fragrance intensity over time, the TCell™ remains constant for a refreshing space up to 30 days. Pair with 120101 - 120104 TCell™ refills.