TCell Air Fragrance Dispenser EachPriced Each. Sold Each. InformationContinuous odor control dispenser uses patented T Cell system to deliver, from each refill, a precise dose of odor neutralizer or odor neutralizer with pure designer fragrance. Each refill treats a 6,000 cubic foot area for 60 full days, without the use of batteries, propellants or added VOCs. Conventional gel air freshener systems lose their fragrance intensity over the life of a refill, but T Cell air fresheners