Amazingly compact and lightweight, the Newaire HG1500 Hydroxyl Air Treatment System features state-of-the-art Photo Catalytic Hydroxyl Generator Technology which is designed to treat the air inside the unit to help kill bacteria and viruses while permanently eliminating odors. The main benefit of using a true hydroxyl generator is that they are safe to use in occupied areas for deodorization purposes. Hydroxyl technology is perfect for removing odors while killing viruses and bacteria in occupied spaces.