Wildlife Research Center Super Charged Scent Killer Odorless Spray 24/24 Combo Engineered with an advanced odorless formula to combat odor at a molecular level Uses Hunt Dry Technology Plus + to work even after it dries Starts reducing odors immediately Tested 99% effective at stopping replicated human odor 10 days after drying at Rutgers University Includes 24 fl. oz. field spray bottle and 24 fl. oz. refill bottle