Dead Down Wind 137240: Dead Down Wind Black Premium with NidorX technology features a new innovative 3-Step formula that effectively traps, attaches and destroys odors. NidorX is a highly concentrated compound that entraps and prevents malodor molecules from being detected on contact. When added to our ScentPrevent enzyme formula, Dead Down Wind Black Premium Field Spray is scientifically proven to provide superior immediate and long-lasting odor elimination against the most offensive odors.