Using attractants is critical to the performance of your Mosquito Magnet. Once mosquitoes sense the carbon dioxide from the Mosquito Magnet, they need secondary attractant Lurex3, to hone in on the trap. What is it? Secondary attractant that mimics skin emanations What Does it attract? Hard-to-catch, aggressive day-biters such as the Asian Tiger mosquito Who should use it? Those living in the Southern US region and Hawaii