Pump Exhaust Odor Control uses a uniquely formulated essential oil to neutralize exhaust odors within a specially designed evaporation chamber. Inside the chamber, the essential oil is activated and vaporized by the heat of the pump's exhaust. Evaporation increases by a hundred-fold the oil's already potent odor eliminating properties thus creating an immensely effective scented filter for all exhaust fumes. This product is now sold at a 40% discount from old pricing, which gives liquid waste pumpers an economical solution to ultimate odor control.