Fragrance refill contains innovative, modern and sophisticated fragrance for the Rubbermaid Commercial TCell 2.0, a battery-free, passive, odor-control system. TCell 2.0's Fuel Cell Technology in the dispenser (sold separately) allows the creation of hydrogen directly in the device's formula chamber. As each molecule of hydrogen is created, it forces an equal amount of fragrance and odor neutralizer out of the chamber. From there, natural airflow distributes the fragrance and odor neutralizer throughout the space, covering up to 6,000 cubic feet. Refill contains Microtrans Technology, a true odor neutralizer, that is paired with high-quality fragrance to effectively eliminate odors. TCell 2.0 fragrance lasts either 30 or 45 days, depending on the dispenser setting selected.