The Plas-Labs catalyst heater has two primary functions for use in the Plas-Labs temperature and humidity glove box. The catalyst heater reduces trace amounts of oxygen and maintains incubation temperature levels of 35-37 °C. The internal atmosphere is drawn off the floor and up across heating elements and aluminized palladium pellets. Any oxygen present will react with your anaerobic gas mixture and be reduced to water vapor. When used in conjunction with the Plas-Labs temperature and humidity glove boxes with drying train attached, the vapor is then removed from the box as needed. CE compliant.