The Odor Control System Model ODC-101 from Wastewater Depot is a preassembled unit housed in a fiberglass sound-reducing enclosure complete with electrical controls. It is designed to handle odors in treatable air using carbon absorption, filtration and sterilization of activated oxygen in areas of a wastewater treatment plant that require odor to be controlled. Air to be treated enters by the air intake blower and is sent to the absorption chamber and passed through the activated carbon filter. It then proceeds through a fixed filter to the ionization chamber, where an ozonator produces ozone to precipitate out various gases to be released into the atmosphere with gases removed. 513/732-0129; www.wastewaterdepot.com.