The Queenair Technologies 883001 QT Thunder Ozone Generator is a large-capacity 120-volt air purifier. It's designed to control impurities and odors in areas as large as 10,000 square feet, such as locker rooms and gyms. The Sporax air filter controls microbial growth and maintains a healthy environment. Its programmable timer lets you decide what your environment's needs are. It'll run continuously according to your specifications. Its gray exterior measures 10.5 inches long, 6.5 inches wide, and 8 inches high, and it weighs 9 pounds.