Mistbox Air Conditioner Optimizer. Save up to 30% on your a/c bill. See photos for model numbers. never used. product video https://www.youtube.com/watch?v=ocLnZCOVkx0. it uses evaporative cooling. sprays on a/c unit to pre-cool the air, improving the efficiency of the air conditioner and potentially reducing energy costs. The Mistbox sprays a fine mist of water onto the AC unit's condenser. This mist evaporates, cooling the air and helping the AC unit run more efficiently. By pre-cooling the air before it enters the AC unit, the Mistbox can potentially save energy and reduce electricity bills. Mistbox is designed to be smart, monitoring temperature, sound, and magnetic fields to determine when to spray the mist. It also has a built-in water filter and a solar panel for power. It is relatively easy to install, requiring minimal tools. istbox requires minimal maintenance, mainly just changing the filter annually. #mistbox #evaporativecooling